note 60373 deleted from function.substr by peehaa
| From: | peehaa@php.net | Date: | Mon, 28 Nov 2016 19:42:22 +0000 |
| Subject: | note 60373 deleted from function.substr by peehaa | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-207712@lists.php.net to get a copy of this message | ||
Note Submitter: eallik at hotmail dot com
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Be careful when comparing the return value of substr to FALSE. FALSE may be returned even if the
output is a valid string.
substr("0", 0); // equals "0", comparision with FALSE evaluates to true, because
"0" == 0 == FALSE