For example a multidimensional array like an example below
$arr = array( [H1] => array( "name" => "A" "title" => "T1" ) [H2] => array( "name" => "B" "title" => "B1" ) ) Let's say I would like to search name which equals to A in $arr and if it's matched, the searching should return the key which is H1
How can I do that in php ?
I tried array_keys($arr, "A") but it returns me with an array instead of the key.
This may help -
$arr = array( 'H1' => array( "name" => "A", "title" => "T1", ), 'H2' => array( "name" => "B", "title" => "B1", ) ); // Generate a new array with 'keys' and values in 'name' $new = array_combine(array_keys($arr), array_column($arr, 'name')); // Search in that new array $search = array_search('A', $new); var_dump($search); Output
string(2) "H1" Another simple way would be -
$serach= false; foreach($arr as $key => $val) { if($val['name'] == 'A') { $search= $key; break; } } var_dump($search); 