php unset array value
A simple foreach loop to go trough the array and remove the item you don't want should be enough. Something like this, in your case, should probably do the trick : foreach ($items as $key => $value) if ($value == $id) unset($items[$key]); // If , array_search() returns the key of the element it finds, which can be used to remove that element from the original array using unset() . It will return FALSE on failure, however it can return a false-y value on success (your key may be 0 for example), wh, The keys are not shuffled or renumbered. The unset() key is simply removed and the others remain. $a = array(1,2,3,4,5); unset($a[2]); print_r($a); Array ( [0] => 1 [1] => 2 [3] => 4 [4] => 5 )., If you know the values of the array elements which you want to delete, then you can use array_diff() . As before with unset() it won't change/reindex the keys of the array. Code <?php $array = array(0 => "a", 1 => "b", 2 , if (($key = array_search('strawberry', $array)) !== false) unset($array[$key]); }. array_search returns false (null until PHP 4.2.0) if no item has been found. And if there can be multiple items with the same value, you can use array_keys to get,The variable in the calling environment will retain the same value as before unset() was called. <?php function destroy_foo() global $foo; unset($foo); } $foo = 'bar'; destroy_foo(); echo $foo; ?> The above example will output: bar. To unse
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 php unset array value 相關參考資料
php - Removing array item by value - Stack Overflow
A simple foreach loop to go trough the array and remove the item you don't want should be enough. Something like this, in your case, should probably do the trick : foreach ($items as $key => $... https://stackoverflow.com PHP array delete by value (not key) - Stack Overflow
array_search() returns the key of the element it finds, which can be used to remove that element from the original array using unset() . It will return FALSE on failure, however it can return a false... https://stackoverflow.com PHP Unset Array value effect on other indexes - Stack Overflow
The keys are not shuffled or renumbered. The unset() key is simply removed and the others remain. $a = array(1,2,3,4,5); unset($a[2]); print_r($a); Array ( [0] => 1 [1] => 2 [3] => 4 [4] =&g... https://stackoverflow.com PHP: Delete an element from an array - Stack Overflow
If you know the values of the array elements which you want to delete, then you can use array_diff() . As before with unset() it won't change/reindex the keys of the array. Code <?php $array =... https://stackoverflow.com PHP: How to remove specific element from an array? - Stack Overflow
if (($key = array_search('strawberry', $array)) !== false) unset($array[$key]); }. array_search returns false (null until PHP 4.2.0) if no item has been found. And if there can be multiple i... https://stackoverflow.com PHP: unset - Manual - PHP.net
The variable in the calling environment will retain the same value as before unset() was called. <?php function destroy_foo() global $foo; unset($foo); } $foo = 'bar'; destroy_foo(); echo ... http://php.net |