PHP array output Three forms of PHP print array

PHP Array output Three forms of PHP print array

$BBBB =array ("one" = "AAA", "All" = "BBB");
Mode one: Only output value cannot output key
foreach ($bbbb as $color)
Echo $color;

Method Two: Both value and key can be output
foreach ($bbbb as $key = $value)
echo $key. " = ". $value;

Method Three: Both value and key can be output
while ($color =each ($bbbb)) {
echo $color [' key '];
}

Print_r ()

Var_dump ()

<?
$a = Array (1, 2, Array ("A", "B", "C"));
Var_dump ($a);
?>

Output Result:
Array (3) {
[0]=>
Int (1)
[1]=>
Int (2)
[2]=>
Array (3) {
[0]=>
String (1) "a"
[1]=>
String (1) "B"
[2]=>
String (1) "C"
}
}

PHP array output Three forms of PHP print array