Justin Patrin wrote:
Richard Harb wrote:
Uh, I was wrong...
Foreach evaluates only once at initialisation... You can even unset the array once into the loop and it still works perfectly well (not that I recommend this as good practice or whatever, just did some checking to be sure :)
Richard
That will work because foreach iterates over a copy of the array. I often do things like:
foreach($arr as $key => $val) { if(some condition) { unset($arr[$key]); } }
Just one other thought. For those of you using PHP5, you can change the actual values in an array by using a reference.
foreach ($arr as $key => &$val) {
if ($condition) {
$val = $newval;
}
}Putting the & in front of the $val tells PHP to use references, which would change the values of the original array. Just another way to skin a cat :)
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