PHP array_keys()

1 개요[ | ]

PHP array_keys()
$member = [ 'ID'=>102, 'Name'=>'YONEZAWA Akinori', 'Address'=>'Naha, Okinawa' ];
$keys = array_keys($member);
print_r($keys);
$arr = [0 => 100, "color" => "red"];
print_r(array_keys($arr));
$arr = ["color" => ["blue", "red", "green"], "size"  => ["small", "medium", "large"]];
print_r(array_keys($arr));
$arr = ["blue", "red", "green", "blue", "blue"];
print_r(array_keys($arr, "blue"));

2 같이 보기[ | ]

3 참고[ | ]

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