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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PHP » Data Structure » array_keys

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); 

?>

Related examples in the same category

1.	Outputting Using array_values() and array_keys() for Backward Compatibility
2.	array_keys( ) returns an array of all the keys in that array
3.	array_keys() function returns an array containing all keys

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