php循环控制语句_PHP教程

Foreach(array_expression as $key => $value)
statement;

FOREACH ($array_variable as $value)
{
[code to execute]
}

or

FOREACH ($array_variable as $key => $value)
{
[code to execute]
}

$array1 = array(1,2,3,4,5);
FOREACH ($array1 as $abc)
{
print "new value is " . $abc*10 . "
";
}

输出结果

new value is 10
new value is 20
new value is 30
new value is 40
new value is 50

$s = array(array(1,2),array(3,4),array(5,6));
foreach( $s as $v => $_v )
{
foreach( $_v as $vc => $_vc )
{
echo $_vc[0],'|'.$_vc[1],'
';
//print_r($_vc);
}
}

/* example 1 */

for ($i = 1; $i <= 10; $i++) {
echo $i;
}

/* example 2 */

for ($i = 1; ; $i++) {
if ($i > 10) {
break;
}
echo $i;
}

/* example 3 */

$i = 1;
for (; ; ) {
if ($i > 10) {
break;
}
echo $i;
$i++;
}

/* example 4 */

for ($i = 1, $j = 0; $i <= 10; $j += $i, print $i, $i++);
?>

/*
* This is an array with some data we want to modify
* when running through the for loop.
*/
$people = Array(
Array('name' => 'Kalle', 'salt' => 856412),
Array('name' => 'Pierre', 'salt' => 215863)
);

for($i = 0; $i {
$people[$i]['salt'] = rand(000000, 999999);
}
?>

/* example 1 */

$i = 1;
while ($i <= 10) {
echo $i++; /* the printed value would be
$i before the increment
(post-increment) */
}

/* example 2 */

$i = 1;
while ($i <= 10):
echo $i;
$i++;
endwhile;
?>

do {
if ($i <5) {
echo "i is not big enough";
break;
}
$i *= $factor;
if ($i <$minimum_limit) {
break;
}
echo "i is ok";

/* process i */

} while (0);
?>