foreach ループの使用例コード

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 . "<br>"; 
}

<?php 
/* foreach example 1: value only */ 
$a = array(1, 2, 3, 17); 
foreach ($a as $v) { 
echo "
Current
 value of \$a: $v.\n"; 
} 
/* foreach example 2: value (with key printed for illustration) */ 
$a = array(1, 2, 3, 17); 
$i = 0; /* for illustrative purposes only */ 
foreach ($a as $v) { 
echo "\$a[$i] => $v.\n"; 
$i++; 
} 
/* foreach example 3: key and value */ 
$a = array( 
"one" => 1, 
"two" => 2, 
"three" => 3, 
"seventeen" => 17 
); 
foreach ($a as $k => $v) { 
echo "\$a[$k] => $v.\n"; 
} 
/* foreach example 4: multi-dimensional arrays */ 
$a = array(); 
$a[0][0] = "a"; 
$a[0][1] = "b"; 
$a[1][0] = "y"; 
$a[1][1] = "z"; 
foreach ($a as $v1) { 
foreach ($v1 as $v2) { 
echo "$v2\n"; 
} 
} 
/* foreach example 5: dynamic arrays */ 
foreach (array(1, 2, 3, 4, 5) as $v) { 
echo "$v\n"; 
} 
?>

$s = array(array(1,2),array(3,4),array(5,6)); 
foreach( $s as $v => $_v ) 
{ 
foreach( $_v as $vc => $_vc ) 
{ 
echo $_vc[0],&#39;|&#39;.$_vc[1],&#39;<br />&#39;; 
//print_r($_vc); 
} 
}

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

foreach ($array as $key=>$value) 
{ 
echo $key.'=>'.$value; 
}