PHP associative array implements methods for deleting elements based on element values, PHP array _php tutorial

PHP associative arrays implement methods for deleting elements based on element values, PHP arrays

The example in this article describes how the PHP associative array implements the deletion of elements based on element values. Share to everyone for your reference. Specific as follows:

<?php $array 1 = Array ("A" = "green", "Red", "Blue", "Red"); $array 2 = Array ("b" = "green"); $result = Array_diff ($array 1, $array 2);//This is equivalent to deleting the element with the value "green" in $array1. Print_r ($result);?>

There is a more complex method than the one above, but the effect is the same:

Function Removearrayelement (& $ar, $val) {$tmp = array (); foreach ($ar as $k + = $arc) {  if ($arc! = $val)  {  $tmp [$k]= $arc;  }} $ar = $tmp; unset ($tmp);}

I hope this article is helpful to everyone's PHP programming.

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