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How to delete previous all elements from a specified index in PHP?



The Next CEO of Stack OverflowPHP Remove section of array before a certain key valueHow can I prevent SQL injection in PHP?How to check if PHP array is associative or sequential?PHP: Delete an element from an arrayDeleting array elements in JavaScript - delete vs spliceHow to insert an item into an array at a specific index (JavaScript)?Reference — What does this symbol mean in PHP?How do I remove a particular element from an array in JavaScript?PHP array delete by value (not key)How can I add new array elements at the beginning of an array in Javascript?Swift for loop: for index, element in array?










6















I have an array and I want to delete previous all elements from the current specified index



For example:



$array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];


I have an index like 3, so I want to delete previous all like



0 => "a", 1 => "b", 2 => "c"


and only have



3=>"d", 4=>"e"


in my new array.
Can anyone help me?










share|improve this question
























  • array_slice?

    – Jonnix
    19 hours ago











  • Take a look at this: stackoverflow.com/questions/4932151/…,

    – Jah
    19 hours ago






  • 1





    Possible duplicate of PHP Remove section of array before a certain key value

    – Sagar P. Ghagare
    19 hours ago















6















I have an array and I want to delete previous all elements from the current specified index



For example:



$array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];


I have an index like 3, so I want to delete previous all like



0 => "a", 1 => "b", 2 => "c"


and only have



3=>"d", 4=>"e"


in my new array.
Can anyone help me?










share|improve this question
























  • array_slice?

    – Jonnix
    19 hours ago











  • Take a look at this: stackoverflow.com/questions/4932151/…,

    – Jah
    19 hours ago






  • 1





    Possible duplicate of PHP Remove section of array before a certain key value

    – Sagar P. Ghagare
    19 hours ago













6












6








6








I have an array and I want to delete previous all elements from the current specified index



For example:



$array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];


I have an index like 3, so I want to delete previous all like



0 => "a", 1 => "b", 2 => "c"


and only have



3=>"d", 4=>"e"


in my new array.
Can anyone help me?










share|improve this question
















I have an array and I want to delete previous all elements from the current specified index



For example:



$array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];


I have an index like 3, so I want to delete previous all like



0 => "a", 1 => "b", 2 => "c"


and only have



3=>"d", 4=>"e"


in my new array.
Can anyone help me?







php arrays






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 19 hours ago









Mohammad

15.9k123766




15.9k123766










asked 19 hours ago









w3outlookw3outlook

486




486












  • array_slice?

    – Jonnix
    19 hours ago











  • Take a look at this: stackoverflow.com/questions/4932151/…,

    – Jah
    19 hours ago






  • 1





    Possible duplicate of PHP Remove section of array before a certain key value

    – Sagar P. Ghagare
    19 hours ago

















  • array_slice?

    – Jonnix
    19 hours ago











  • Take a look at this: stackoverflow.com/questions/4932151/…,

    – Jah
    19 hours ago






  • 1





    Possible duplicate of PHP Remove section of array before a certain key value

    – Sagar P. Ghagare
    19 hours ago
















array_slice?

– Jonnix
19 hours ago





array_slice?

– Jonnix
19 hours ago













Take a look at this: stackoverflow.com/questions/4932151/…,

– Jah
19 hours ago





Take a look at this: stackoverflow.com/questions/4932151/…,

– Jah
19 hours ago




1




1





Possible duplicate of PHP Remove section of array before a certain key value

– Sagar P. Ghagare
19 hours ago





Possible duplicate of PHP Remove section of array before a certain key value

– Sagar P. Ghagare
19 hours ago












6 Answers
6






active

oldest

votes


















6














$array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
$output = array_slice($array, 3);


output:



array(2) 
[0]=> string(1) "d"
[1]=> string(1) "e"



Another solution with saving index



$array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
$output = array_slice($array, 3, null, true);


output:



array(2) 
[3]=> string(1) "d"
[4]=> string(1) "e"



https://www.php.net/manual/en/function.array-slice.php






share|improve this answer








New contributor




Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



























    5














    You may to use array_slice()



    In example :



    <?php
    $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

    $startingPosition = 3;

    // Preserve keys
    // |
    // Your array Delete from Delete to |
    // | | (if null, |
    // | | to the end) |
    // | | | |
    // v v v v
    $array = array_slice($array, $startingPosition , null, true);

    var_dump($array);


    Output :



    array(2) 
    [3]=>
    string(1) "d"
    [4]=>
    string(1) "e"






    share|improve this answer




















    • 1





      But your code reset keys

      – Mohammad
      19 hours ago






    • 1





      @Mohammad I edited, thank you.

      – Cid
      19 hours ago


















    3














    You can also use unset() to remove the elements. As shown below.



    <?php

    $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
    $index = 3;

    for($i = 0; $i<$index; $i++)
    unset($array[$i]);

    echo "<pre>";print_r($array);

    ?>





    share|improve this answer






























      3














      You can use veriation of array-slice and so on (as array_slice($array, 3) ) but also simple for loop:



      $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
      $copy = false;
      foreach($array as $k => $v)
      $copy





      share|improve this answer
































        2














        Try this



        <?php

        $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

        $new_array = array_slice($array, 3); // 3 is your key to slice

        print_r($new_array);

        ?>





        share|improve this answer






























          2














          You can use array_slice:



          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
          $newArray = array_slice($array, 3, NULL, TRUE);
          echo '<pre>';
          print_r($newArray);
          echo '</pre>';


          Output:



          Array
          (
          [3] => d
          [4] => e
          )



          Note that 4 th parameter: TRUE -> preserve_keys is very important.




          If it is set to true, preserves the keys in the output array.



          Your new array will now have all elements only after index 3



          All elements before 3 are not returned here.






          share|improve this answer

























          • OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

            – Mohammad
            19 hours ago











          • @Mohammad, thanks for helping me.

            – Pupil
            19 hours ago











          Your Answer






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          6 Answers
          6






          active

          oldest

          votes








          6 Answers
          6






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          6














          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
          $output = array_slice($array, 3);


          output:



          array(2) 
          [0]=> string(1) "d"
          [1]=> string(1) "e"



          Another solution with saving index



          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
          $output = array_slice($array, 3, null, true);


          output:



          array(2) 
          [3]=> string(1) "d"
          [4]=> string(1) "e"



          https://www.php.net/manual/en/function.array-slice.php






          share|improve this answer








          New contributor




          Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.
























            6














            $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
            $output = array_slice($array, 3);


            output:



            array(2) 
            [0]=> string(1) "d"
            [1]=> string(1) "e"



            Another solution with saving index



            $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
            $output = array_slice($array, 3, null, true);


            output:



            array(2) 
            [3]=> string(1) "d"
            [4]=> string(1) "e"



            https://www.php.net/manual/en/function.array-slice.php






            share|improve this answer








            New contributor




            Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
            Check out our Code of Conduct.






















              6












              6








              6







              $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
              $output = array_slice($array, 3);


              output:



              array(2) 
              [0]=> string(1) "d"
              [1]=> string(1) "e"



              Another solution with saving index



              $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
              $output = array_slice($array, 3, null, true);


              output:



              array(2) 
              [3]=> string(1) "d"
              [4]=> string(1) "e"



              https://www.php.net/manual/en/function.array-slice.php






              share|improve this answer








              New contributor




              Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.










              $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
              $output = array_slice($array, 3);


              output:



              array(2) 
              [0]=> string(1) "d"
              [1]=> string(1) "e"



              Another solution with saving index



              $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
              $output = array_slice($array, 3, null, true);


              output:



              array(2) 
              [3]=> string(1) "d"
              [4]=> string(1) "e"



              https://www.php.net/manual/en/function.array-slice.php







              share|improve this answer








              New contributor




              Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.









              share|improve this answer



              share|improve this answer






              New contributor




              Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.









              answered 19 hours ago









              Mikalai HalavachMikalai Halavach

              1362




              1362




              New contributor




              Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.





              New contributor





              Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.






              Mikalai Halavach is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
              Check out our Code of Conduct.























                  5














                  You may to use array_slice()



                  In example :



                  <?php
                  $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                  $startingPosition = 3;

                  // Preserve keys
                  // |
                  // Your array Delete from Delete to |
                  // | | (if null, |
                  // | | to the end) |
                  // | | | |
                  // v v v v
                  $array = array_slice($array, $startingPosition , null, true);

                  var_dump($array);


                  Output :



                  array(2) 
                  [3]=>
                  string(1) "d"
                  [4]=>
                  string(1) "e"






                  share|improve this answer




















                  • 1





                    But your code reset keys

                    – Mohammad
                    19 hours ago






                  • 1





                    @Mohammad I edited, thank you.

                    – Cid
                    19 hours ago















                  5














                  You may to use array_slice()



                  In example :



                  <?php
                  $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                  $startingPosition = 3;

                  // Preserve keys
                  // |
                  // Your array Delete from Delete to |
                  // | | (if null, |
                  // | | to the end) |
                  // | | | |
                  // v v v v
                  $array = array_slice($array, $startingPosition , null, true);

                  var_dump($array);


                  Output :



                  array(2) 
                  [3]=>
                  string(1) "d"
                  [4]=>
                  string(1) "e"






                  share|improve this answer




















                  • 1





                    But your code reset keys

                    – Mohammad
                    19 hours ago






                  • 1





                    @Mohammad I edited, thank you.

                    – Cid
                    19 hours ago













                  5












                  5








                  5







                  You may to use array_slice()



                  In example :



                  <?php
                  $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                  $startingPosition = 3;

                  // Preserve keys
                  // |
                  // Your array Delete from Delete to |
                  // | | (if null, |
                  // | | to the end) |
                  // | | | |
                  // v v v v
                  $array = array_slice($array, $startingPosition , null, true);

                  var_dump($array);


                  Output :



                  array(2) 
                  [3]=>
                  string(1) "d"
                  [4]=>
                  string(1) "e"






                  share|improve this answer















                  You may to use array_slice()



                  In example :



                  <?php
                  $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                  $startingPosition = 3;

                  // Preserve keys
                  // |
                  // Your array Delete from Delete to |
                  // | | (if null, |
                  // | | to the end) |
                  // | | | |
                  // v v v v
                  $array = array_slice($array, $startingPosition , null, true);

                  var_dump($array);


                  Output :



                  array(2) 
                  [3]=>
                  string(1) "d"
                  [4]=>
                  string(1) "e"







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited 19 hours ago

























                  answered 19 hours ago









                  CidCid

                  5,21121129




                  5,21121129







                  • 1





                    But your code reset keys

                    – Mohammad
                    19 hours ago






                  • 1





                    @Mohammad I edited, thank you.

                    – Cid
                    19 hours ago












                  • 1





                    But your code reset keys

                    – Mohammad
                    19 hours ago






                  • 1





                    @Mohammad I edited, thank you.

                    – Cid
                    19 hours ago







                  1




                  1





                  But your code reset keys

                  – Mohammad
                  19 hours ago





                  But your code reset keys

                  – Mohammad
                  19 hours ago




                  1




                  1





                  @Mohammad I edited, thank you.

                  – Cid
                  19 hours ago





                  @Mohammad I edited, thank you.

                  – Cid
                  19 hours ago











                  3














                  You can also use unset() to remove the elements. As shown below.



                  <?php

                  $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                  $index = 3;

                  for($i = 0; $i<$index; $i++)
                  unset($array[$i]);

                  echo "<pre>";print_r($array);

                  ?>





                  share|improve this answer



























                    3














                    You can also use unset() to remove the elements. As shown below.



                    <?php

                    $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                    $index = 3;

                    for($i = 0; $i<$index; $i++)
                    unset($array[$i]);

                    echo "<pre>";print_r($array);

                    ?>





                    share|improve this answer

























                      3












                      3








                      3







                      You can also use unset() to remove the elements. As shown below.



                      <?php

                      $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                      $index = 3;

                      for($i = 0; $i<$index; $i++)
                      unset($array[$i]);

                      echo "<pre>";print_r($array);

                      ?>





                      share|improve this answer













                      You can also use unset() to remove the elements. As shown below.



                      <?php

                      $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                      $index = 3;

                      for($i = 0; $i<$index; $i++)
                      unset($array[$i]);

                      echo "<pre>";print_r($array);

                      ?>






                      share|improve this answer












                      share|improve this answer



                      share|improve this answer










                      answered 19 hours ago









                      Aravind Bhat KAravind Bhat K

                      3641215




                      3641215





















                          3














                          You can use veriation of array-slice and so on (as array_slice($array, 3) ) but also simple for loop:



                          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                          $copy = false;
                          foreach($array as $k => $v)
                          $copy





                          share|improve this answer





























                            3














                            You can use veriation of array-slice and so on (as array_slice($array, 3) ) but also simple for loop:



                            $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                            $copy = false;
                            foreach($array as $k => $v)
                            $copy





                            share|improve this answer



























                              3












                              3








                              3







                              You can use veriation of array-slice and so on (as array_slice($array, 3) ) but also simple for loop:



                              $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                              $copy = false;
                              foreach($array as $k => $v)
                              $copy





                              share|improve this answer















                              You can use veriation of array-slice and so on (as array_slice($array, 3) ) but also simple for loop:



                              $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                              $copy = false;
                              foreach($array as $k => $v)
                              $copy






                              share|improve this answer














                              share|improve this answer



                              share|improve this answer








                              edited 18 hours ago

























                              answered 19 hours ago









                              dWinderdWinder

                              6,46131231




                              6,46131231





















                                  2














                                  Try this



                                  <?php

                                  $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                                  $new_array = array_slice($array, 3); // 3 is your key to slice

                                  print_r($new_array);

                                  ?>





                                  share|improve this answer



























                                    2














                                    Try this



                                    <?php

                                    $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                                    $new_array = array_slice($array, 3); // 3 is your key to slice

                                    print_r($new_array);

                                    ?>





                                    share|improve this answer

























                                      2












                                      2








                                      2







                                      Try this



                                      <?php

                                      $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                                      $new_array = array_slice($array, 3); // 3 is your key to slice

                                      print_r($new_array);

                                      ?>





                                      share|improve this answer













                                      Try this



                                      <?php

                                      $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];

                                      $new_array = array_slice($array, 3); // 3 is your key to slice

                                      print_r($new_array);

                                      ?>






                                      share|improve this answer












                                      share|improve this answer



                                      share|improve this answer










                                      answered 19 hours ago









                                      NickNick

                                      236212




                                      236212





















                                          2














                                          You can use array_slice:



                                          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                                          $newArray = array_slice($array, 3, NULL, TRUE);
                                          echo '<pre>';
                                          print_r($newArray);
                                          echo '</pre>';


                                          Output:



                                          Array
                                          (
                                          [3] => d
                                          [4] => e
                                          )



                                          Note that 4 th parameter: TRUE -> preserve_keys is very important.




                                          If it is set to true, preserves the keys in the output array.



                                          Your new array will now have all elements only after index 3



                                          All elements before 3 are not returned here.






                                          share|improve this answer

























                                          • OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

                                            – Mohammad
                                            19 hours ago











                                          • @Mohammad, thanks for helping me.

                                            – Pupil
                                            19 hours ago















                                          2














                                          You can use array_slice:



                                          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                                          $newArray = array_slice($array, 3, NULL, TRUE);
                                          echo '<pre>';
                                          print_r($newArray);
                                          echo '</pre>';


                                          Output:



                                          Array
                                          (
                                          [3] => d
                                          [4] => e
                                          )



                                          Note that 4 th parameter: TRUE -> preserve_keys is very important.




                                          If it is set to true, preserves the keys in the output array.



                                          Your new array will now have all elements only after index 3



                                          All elements before 3 are not returned here.






                                          share|improve this answer

























                                          • OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

                                            – Mohammad
                                            19 hours ago











                                          • @Mohammad, thanks for helping me.

                                            – Pupil
                                            19 hours ago













                                          2












                                          2








                                          2







                                          You can use array_slice:



                                          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                                          $newArray = array_slice($array, 3, NULL, TRUE);
                                          echo '<pre>';
                                          print_r($newArray);
                                          echo '</pre>';


                                          Output:



                                          Array
                                          (
                                          [3] => d
                                          [4] => e
                                          )



                                          Note that 4 th parameter: TRUE -> preserve_keys is very important.




                                          If it is set to true, preserves the keys in the output array.



                                          Your new array will now have all elements only after index 3



                                          All elements before 3 are not returned here.






                                          share|improve this answer















                                          You can use array_slice:



                                          $array = [0 => "a", 1 => "b", 2 => "c", 3=>"d", 4=>"e"];
                                          $newArray = array_slice($array, 3, NULL, TRUE);
                                          echo '<pre>';
                                          print_r($newArray);
                                          echo '</pre>';


                                          Output:



                                          Array
                                          (
                                          [3] => d
                                          [4] => e
                                          )



                                          Note that 4 th parameter: TRUE -> preserve_keys is very important.




                                          If it is set to true, preserves the keys in the output array.



                                          Your new array will now have all elements only after index 3



                                          All elements before 3 are not returned here.







                                          share|improve this answer














                                          share|improve this answer



                                          share|improve this answer








                                          edited 19 hours ago

























                                          answered 19 hours ago









                                          PupilPupil

                                          19.9k43156




                                          19.9k43156












                                          • OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

                                            – Mohammad
                                            19 hours ago











                                          • @Mohammad, thanks for helping me.

                                            – Pupil
                                            19 hours ago

















                                          • OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

                                            – Mohammad
                                            19 hours ago











                                          • @Mohammad, thanks for helping me.

                                            – Pupil
                                            19 hours ago
















                                          OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

                                          – Mohammad
                                          19 hours ago





                                          OP want to keep keys in new array. and only have 3=>"d", 4=>"e" in my new array

                                          – Mohammad
                                          19 hours ago













                                          @Mohammad, thanks for helping me.

                                          – Pupil
                                          19 hours ago





                                          @Mohammad, thanks for helping me.

                                          – Pupil
                                          19 hours ago

















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