/PHP/Php How do you remove an array element in a foreach loop?

Php How do you remove an array element in a foreach loop?

Instead of doing foreach() loop on the array, it would be faster to use array_search() to find the proper key. On small arrays, I would go with foreach for better readibility, but for bigger arrays, or often executed code, this should be a bit more optimal:

$result=array_search($unwantedValue,$array,true);
if($result !== false) {
  unset($array[$result]);   
}

The strict comparsion operator !== is needed, because array_search() can return 0 as the index of the $unwantedValue.

Also, the above example will remove just the first value $unwantedValue, if the $unwantedValue can occur more then once in the $array, You should use array_keys(), to find all of them:

$result=array_keys($array,$unwantedValue,true)
foreach($result as $key) {
  unset($array[$key]);
}

Check http://php.net/manual/en/function.array-search.php for more information.

Source: stackoverflow.com

Similar codes

4 votes192 views2 answers
Laravel migration update table column type
PHP
11 votes232 views2 answers
Eloquent get distinct
PHP
4 votes204 views3 answers
Convert xml file to array php
PHP
0 vote168 views1 answer
Tinker colorful
PHP
0 vote212 views1 answer
Laravel event generate
PHP Laravel
0 vote206 views1 answer
How to fix Undefined variable: product (View: C:\xampp\htdocs\ecommerce\resources\views\livewire\shop-component.blade.php)
PHP
0 vote226 views1 answer
Provide filter condition in autocomplet field in drupal form using property
PHP Drupal
0 vote182 views1 answer
Sort by number of views descending laravel
PHP
0 vote220 views1 answer
Php store session in cookie
PHP
0 vote182 views2 answers
Php object to xml
PHP