php foreach用法

php ：foreach基本用法

foreach (array as $key => $value){

}

$key是键名

$value是键值.

比如一个多维数组

----------------------------Y代码---------------------------------

$bb=array(
array('A','b','c'),
array('d','e','f'),
array('g','h','j'),
);
$cc=array(
array('A1','b1','c1'),
array('d1','e1','f1'),
array('g1','h1','j1'),
);
$AA=array($bb,$cc);
foreach ($AA as $key => $value){
echo $key;    
var_dump($value);
}

----------------------------N代码---------------------------------

结果是：

----------------------------Y显示---------------------------------

0

array (size=3)  0 =>     array (size=3)      0 => string 'A' (length=1)      1 => string 'b' (length=1)      2 => string 'c' (length=1)  1 =>     array (size=3)      0 => string 'd' (length=1)      1 => string 'e' (length=1)      2 => string 'f' (length=1)  2 =>     array (size=3)      0 => string 'g' (length=1)      1 => string 'h' (length=1)      2 => string 'j' (length=1)

1

array (size=3)  0 =>     array (size=3)      0 => string 'A1' (length=2)      1 => string 'b1' (length=2)      2 => string 'c1' (length=2)  1 =>     array (size=3)      0 => string 'd1' (length=2)      1 => string 'e1' (length=2)      2 => string 'f1' (length=2)  2 =>     array (size=3)      0 => string 'g1' (length=2)      1 => string 'h1' (length=2)      2 => string 'j1' (length=2)

----------------------------N显示---------------------------------