note 76160 deleted from function.strlen by danbrown
| From: | danbrown@php.net | Date: | Thu, 12 Feb 2009 03:14:13 +0000 |
| Subject: | note 76160 deleted from function.strlen by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-150535@lists.php.net to get a copy of this message | ||
Note Submitter: Mike Rosoft
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The function "empty" tests whether a variable will evaluate as FALSE; the string
'0' (as well as the number 0) does.
Another simple way of testing for an empty string is:
if($string=='') foo();
else bar();
This will match an empty string and anything that converts to it (such as NULL/unset variable), but
not the number zero as either a number or a string.