array個數(PHP、JAVA)

PHP

$array=array(0,1,2,3);

echo count($array) \\==> 4

JAVA

int[] array=new int[]{0,1,2,3};

echo array.length \\==> 4

String length method for PHP、JAVA、javascript

PHP:

int strlen ( string $string )

JAVA:(String object)

public int length()

javascript:

string.length