array_column()
is only available in PHP 5.5 or later. 😛- Figured this out for the example code demonstrating some cool new features in Caldera Forms 1.2
- This is a little extra-complex due to my need to find the array key, as the function returns the (numeric) index.
- I need a syntax highlighter, I know.
$a = array( 'x' => array( 'a' => 7, 'b' => 8, ), 'y' => array( 'a' => 2, 'b' => 9, ), 'z' => array( 'a' => 55, 'b' => 'hats' ) ); //demonstrate how array_column works var_dump( array_column( $a, 'b' ) ); //returns an array of all 'b' keys in array $a //get the index (numeric) of array in $a with value of 1 for index 'b' $index = array_search( 9, array_column( $a, 'b' ) ); // returns one, the (numeric) index of the array we want //get numberic indexes of array $indexes = array_keys( $a ); //get key for the index we want $key = $indexes[ $index ]; //returns 'y' var_dump( $key );