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try this function (it also works will associatives arrays) function array_search_func(array $arr, $func) { foreach ($arr as $key => $v) if ($func($v)) return $key; return false; }
If you want to do this with an associative array, try this instead: PHP 5.3+ (lambda function) $url = 'http://example.com/index.php?'; $url .= implode('&', array_map(function($key, $val) { return 'aValues[' . urlencode($key) . ']=' . urlencode($val); }, array_keys($aValues), $aValues) ); PHP <5.3 (callback)
Syntax. array_search (value, array, strict) Parameter Values. Technical Details. More Examples. Example. Search an array for the value 5 and return its key (notice the ""): <?php. $a=array("a"=>"5","b"=>5,"c"=>"5"); echo array_search (5,$a,true); ?> Try it Yourself » PHP Array Reference. W3schools Pathfinder.
array_search - Searches the array for a given value and returns the first corresponding key if successful
Combining syntax of array_search() and functionality of array_keys() to get all key=>value associations of an array with the given search-value: <?php function array_search_values ( $m_needle , $a_haystack , $b_strict = false ){
Learn how to effectively use PHP's array_search() function to search for values in arrays. This practical guide includes code samples and examples for various scenarios.
8 wrz 2023 · The array_search() function searches an array for a given value and returns the first matching key for that value. Syntax array_search(value, array, strict) value: The value to search for. array: The array to search in. strict: Optional argument that defaults to false if not given.
