/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

0 vote181 views1 answer
Trait 'laravel\sanctum\HasApiTokens' not found laravel 7
PHP Laravel
1 vote227 views1 answer
E: Unable to locate package php7.2-mbstring
PHP
0 vote182 views1 answer
Remove rank math next prev canonical
PHP
0 vote165 views1 answer
Laravel collection average
PHP
0 vote143 views2 answers
Php mysql text mark question
PHP
0 vote159 views1 answer
Php strftime year 2 digits
PHP
6 votes190 views2 answers
Laravel check if request has value
PHP Laravel
0 vote211 views6 answers
Socialite laravel 7
PHP Laravel
1 vote161 views1 answer
Php http_build_query
PHP
1 vote148 views1 answer
Php copy url
PHP