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Bug #76364 filemtime() must return false if file not exist
Submitted: 2018-05-22 07:10 UTC Modified: 2018-05-22 07:32 UTC
From: golden dot pr at mail dot ru Assigned:
Status: Not a bug Package: Filesystem function related
PHP Version: 7.1.17 OS:
Private report: No CVE-ID: None
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 [2018-05-22 07:10 UTC] golden dot pr at mail dot ru
From manual page:
filemtime() must return false if file not exist

Test script:
$path = './test.txt';
echo @filemtime($path);

Expected result:
filemtime(): stat failed for {$path}

Actual result:


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 [2018-05-22 07:11 UTC] golden dot pr at mail dot ru
Expected result:

Actual result:
filemtime(): stat failed for {$path}
 [2018-05-22 07:32 UTC]
-Status: Open +Status: Not a bug
 [2018-05-22 07:32 UTC]

If you don't think the "Converting to string" section is relevant to your problem, read it again until it does.
 [2018-05-22 08:31 UTC] spam2 at rhsoft dot net
it does exactly what the docs say, the only thing which should be fixed is the braindead warning for functions which return false in case of errors so that you don't need @ or a uselss file_exists() around the code

you likely miss one of the most important facts when working with PHP: ===, !== when compare values and when boolean false is converted to a string it's an empty string, since echo is working with string it does implicit typecasting and false is something completly different then the string 'false'

php > echo false;
php >

php > if(filemtime('nonexists') === false){echo 'NON-EXISTS';}
Warning: filemtime(): stat failed for nonexists in php shell code on line 1
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