note 110573 added to control-structures.for
| From: | PhilippTrommler | Date: | Thu, 08 Nov 2012 16:34:33 +0000 |
| Subject: | note 110573 added to control-structures.for | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-191811@lists.php.net to get a copy of this message | ||
Note, that, because the first line is executed everytime, it is not only slow to put a function
there, it can also lead to problems like:
<?php
$array = array(0 => "a", 1 => "b", 2 => "c", 3 =>
"d");
for($i = 0; $i < count($array); $i++){
echo $array[$i];
unset($array[$i]);
}
?>
This will only output the half of the elements, because the array is becoming shorter everytime the
for-expression counts it.
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Probable Submitter: 146.52.55.72
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Manual Page -- http://www.php.net/manual/en/control-structures.for.php
Edit -- https://master.php.net/note/edit/110573
Del: integrated -- https://master.php.net/note/delete/110573/integrated
Del: useless -- https://master.php.net/note/delete/110573/useless
Del: bad code -- https://master.php.net/note/delete/110573/bad+code
Del: spam -- https://master.php.net/note/delete/110573/spam
Del: non-english -- https://master.php.net/note/delete/110573/non-english
Del: in docs -- https://master.php.net/note/delete/110573/in+docs
Del: other reasons-- https://master.php.net/note/delete/110573
Reject -- https://master.php.net/note/reject/110573
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