PHP array – foreach loop on values
<?php
$a = array("v1", "v2", "v3");
foreach ($a as $val) {
echo "$val ";
}
?>v1 v2 v3
Env: PHP 7.4.33 (Linux)
PHP array – foreach loop on index,values
<?php
$a = array("v1", "v2", "v3");
foreach ($a as $idx => $val) {
echo "$idx $val ";
}
?>0 v1 1 v2 2 v3
Env: PHP 7.4.33 (Linux)
PHP array – foreach loop for modification
<?php
$a = array("v1", "v2", "v3");
foreach ($a as &$val) {
$val = $val . "New";
}
print_r($a);
?>Array
(
[0] => v1New
[1] => v2New
[2] => v3New
)
Env: PHP 7.4.33 (Linux)
PHP associative array – foreach loop on values
<?php
$a = array("k1"=>"v1", "k2"=>"v2", "k3"=>"v3");
foreach ($a as $val) {
echo "$val ";
}
?>v1 v2 v3
Env: PHP 7.4.33 (Linux)
PHP associative array – foreach loop on keys,values
<?php
$a = array("k1"=>"v1", "k2"=>"v2", "k3"=>"v3");
foreach ($a as $key=>$val) {
echo "$key $val ";
}
?>k1 v1 k2 v2 k3 v3
Env: PHP 7.4.33 (Linux)
