@ 2015-08-31T17:41:15Z <?php
$arr = ['one', 'two', 'three', 'four', 'five'];
echo 'foreach on $arr' . PHP_EOL;
foreach($arr as $elem) {
var_dump(current($arr));
}
echo PHP_EOL . 'foreach on $refArr' . PHP_EOL;
$refArr = &$arr;
foreach($refArr as $elem) {
var_dump(current($arr));
}
echo PHP_EOL . 'substituting array during iteration' . PHP_EOL;
$refArr = &$arr;
foreach($refArr as $elem) {
if ($elem == 'three') {
$arr = [1, 2, 3, 4, 5];
}
echo $elem . PHP_EOL;
}
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Output for 7.0.0 - 7.0.20 , 7.1.0 - 7.1.20 , 7.2.0 - 7.2.33 , 7.3.16 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 foreach on $arr
string(3) "one"
string(3) "one"
string(3) "one"
string(3) "one"
string(3) "one"
foreach on $refArr
string(3) "one"
string(3) "one"
string(3) "one"
string(3) "one"
string(3) "one"
substituting array during iteration
one
two
three
four
five
Output for 5.4.0 - 5.4.45 , 5.5.24 - 5.5.35 , 5.6.8 - 5.6.28 foreach on $arr
string(3) "two"
string(3) "two"
string(3) "two"
string(3) "two"
string(3) "two"
foreach on $refArr
string(3) "two"
string(5) "three"
string(4) "four"
string(4) "five"
bool(false)
substituting array during iteration
one
two
three
1
2
3
4
5
Output for 4.4.2 - 4.4.9 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 Parse error: syntax error, unexpected '[' in /in/jmqZl on line 3
Process exited with code 255 . Output for 4.3.0 - 4.3.1 , 4.3.5 - 4.3.11 , 4.4.0 - 4.4.1 , 5.0.0 - 5.0.5 Parse error: parse error, unexpected '[' in /in/jmqZl on line 3
Process exited with code 255 . Output for 4.3.2 - 4.3.4 Parse error: parse error in /in/jmqZl on line 3
Process exited with code 255 . preferences:dark mode live preview
230.1 ms | 401 KiB | 312 Q