Return all the keys of an array with array array_keys (array input [, mixed search_value]) : array_keys « Data Structure « PHP






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Return all the keys of an array with array array_keys (array input [, mixed search_value])

 
<?
$array = array(0 => 100, "color" => "red");
array_keys ($array); 
$array = array(1, 100, 2, 100);
array_keys ($array, 100); 
?>








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