<?php
$a = array('a', 'b');
foreach ($a as $key => $val) {
$a[2] .= 'a';
var_dump($a);
}
var_dump($a);
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Warning: Undefined array key 2 in /in/o0CZG on line 4
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "a"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- Notice: Undefined offset: 2 in /in/o0CZG on line 4
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "a"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
- Output for 7.3.32 - 7.3.33
- array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "a"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
- Notice: Undefined offset: 2 in /in/o0CZG on line 4
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "a"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(2) "aa"
}
preferences:
326.02 ms | 403 KiB | 459 Q