array_search

array_search

Searches the array for a given value and returns the first corresponding key if successful

 **array_search** mixed $needle array $haystack bool $strict

Searches for in . needle``haystack

needleThe searched value.

Opmerking: > If is a string, the comparison is done in a case-sensitive manner. needle

haystackThe array.

strict If the third parameter is set to true then the function will search for elements in the . This means it will also perform a of the in the , and objects must be the same instance. strict``array_searchidenticalhaystackstrict type comparisonneedle``haystack

Returns the key for if it is found in the array, false otherwise. needle

If is found in more than once, the first matching key is returned. To return the keys for all matching values, use with the optional parameter instead. needle``haystack``array_keys``filter_value

Voorbeeld: example

<?php
$array = array(0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red');

$key = array_search('green', $array); // $key = 2;
print_r($key);

$key = array_search('red', $array);   // $key = 1;
print_r($key);
?>

array_keys``array_values``array_key_exists``in_array