/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

1 vote173 views1 answer
Php check if function exists
PHP
3 votes145 views2 answers
Php link to page
PHP
7 votes216 views2 answers
Laravel 8 query builder, Inner Join Clause
PHP Laravel
10 votes194 views3 answers
Get current date carbon laravel
PHP Laravel
0 vote223 views3 answers
Laravel select default old value
PHP Laravel
2 votes223 views2 answers
Laravel simplexmlelement xml add attribute
PHP
0 vote193 views1 answer
Laravel controller constructor auth user null
PHP Laravel
0 vote194 views1 answer
Php how to get decimal after devide
PHP
0 vote267 views1 answer
Env clear cache laravel
PHP Laravel
5 votes171 views6 answers
Array sort php
PHP