how to iterate through php array
$ar = ['Rudi', 'Morie', 'Halo', 'Miki'];
for ($i=0, $len=count($ar); $i<$len; $i++) {
echo "$ar[$i] \n";
}
/*
Rudi
Morie
Halo
Miki
*/how to iterate through php array
$ar = ['Rudi', 'Morie', 'Halo', 'Miki'];
for ($i=0, $len=count($ar); $i<$len; $i++) {
echo "$ar[$i] \n";
}
/*
Rudi
Morie
Halo
Miki
*/for each php
<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
$value = $value * 2;
}
// $arr is now array(2, 4, 6, 8)
// without an unset($value), $value is still a reference to the last item: $arr[3]
foreach ($arr as $key => $value) {
// $arr[3] will be updated with each value from $arr...
echo "{$key} => {$value} ";
print_r($arr);
}
// ...until ultimately the second-to-last value is copied onto the last value
// output:
// 0 => 2 Array ( [0] => 2, [1] => 4, [2] => 6, [3] => 2 )
// 1 => 4 Array ( [0] => 2, [1] => 4, [2] => 6, [3] => 4 )
// 2 => 6 Array ( [0] => 2, [1] => 4, [2] => 6, [3] => 6 )
// 3 => 6 Array ( [0] => 2, [1] => 4, [2] => 6, [3] => 6 )
?>Copyright © 2021 Codeinu
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