3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = array( "abc"=>array( "label" => "abc", "value" => "def", "type" => "ghi", "desc" => "jkl", ), "def"=>array( "label" => "mno", "value" => "qrs", "type" => "tuv", "desc" => "wxyz", ), ); $matches = array(); $pattern = "/a/i"; //contains an 'a' //loop through the data foreach($data as $key=>$value){ //loop through each key under data sub array foreach($value as $key2=>$value2){ //check for match. if(preg_match($pattern, $value2)){ //add to matches array. $matches[$key]=$value; //match found, so break from foreach break; } } } echo '<pre>'.print_r($matches, true).'</pre>';
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<pre>Array ( [abc] => Array ( [label] => abc [value] => def [type] => ghi [desc] => jkl ) ) </pre>

preferences:
230.55 ms | 406 KiB | 460 Q