note 87800 deleted from function.shell-exec by cmb
| From: | cmb@php.net | Date: | Sun, 14 Jul 2019 11:39:00 +0000 |
| Subject: | note 87800 deleted from function.shell-exec by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-211600@lists.php.net to get a copy of this message | ||
Note Submitter: dae3
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Beware of the following inconsistency: shell_exec() and the backtick operator will not return a
string if the command's output is empty -- they'll return NULL instead.
This will make strict comparisons to '' return false.