note 106983 added to language.operators.comparison
| From: | lennartackermans at gmail dot com | Date: | Sat, 24 Dec 2011 13:50:12 +0000 |
| Subject: | note 106983 added to language.operators.comparison | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-185230@lists.php.net to get a copy of this message | ||
Be cautious when using === and !== operators and be sure that you understand their meanings. ($a ===
TRUE) is not the same as ($a !== FALSE). When testing the return value of a function that may return
boolean false or a value of another type (like strpos()), do not test for boolean true.
The following script will only output "Not false":
<?php
$a = 5;
if ($a === TRUE) {
echo "True";
}
if ($a !== FALSE) {
echo "Not false";
}
?>
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Server IP: 83.137.20.135
Probable Submitter: 178.85.94.149
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Manual Page -- http://www.php.net/manual/en/language.operators.comparison.php
Edit -- https://master.php.net/note/edit/106983
Del: integrated -- https://master.php.net/note/delete/106983/integrated
Del: useless -- https://master.php.net/note/delete/106983/useless
Del: bad code -- https://master.php.net/note/delete/106983/bad+code
Del: spam -- https://master.php.net/note/delete/106983/spam
Del: non-english -- https://master.php.net/note/delete/106983/non-english
Del: in docs -- https://master.php.net/note/delete/106983/in+docs
Del: other reasons-- https://master.php.net/note/delete/106983
Reject -- https://master.php.net/note/reject/106983
Search -- https://master.php.net/manage/user-notes.php