Inserting and removing a string into/from an array
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by alex
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Published on 2010-03-12T10:55:15Z
Indexed on
2010/03/12
11:17 UTC
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Hello all! I have an array and variable. If the variable does not exist in the array it has to be added, otherwise it has to be removed. Why the following code does not work?
$ar = ["a","b","c"];
$vr = "b";
foreach ($ar as $i => $value) {
if ($value == $vr) {
unset ($ar[$i]);
} else {
$ar[] = $vr;
$ar = array_unique($ar);
}
}
Thanks.
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