php, give me an explanation
$arr = array(3,2,1);
foreach($arr as &$val){}
foreach($arr as $key => $val) {
}
print_r($arr);
// 3 2 2
Array
(
[0] => 3
[1] => 2
[2] => 2
)
php, give me an explanation
$arr = array(3,2,1);
foreach($arr as &$val){}
foreach($arr as $key => $val) {
}
print_r($arr);
// 3 2 2
Array
(
[0] => 3
[1] => 2
[2] => 2
)
well, the first of 's ten most common mistakes made by PHP developers .
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