PHP Warnings: stat(), unlink(), chmod()

  • I’m not sure what is the root cause of the issue, WordPress 4.8 or Contact Form 7 v4.8 but 4.8 or maybe our update to PHP7 but I’ve been randomly getting the following string of errors:

    PHP Warning:  stat(): stat failed for /wp-content/uploads/wpcf7_captcha/1016550241.txt in /wp-content/plugins/really-simple-captcha/really-simple-captcha.php on line 257
PHP Warning:  unlink(/wp-content/uploads/wpcf7_captcha/1016550241.txt): No such file or directory in /wp-content/plugins/really-simple-captcha/really-simple-captcha.php on line 260
PHP Warning:  chmod(): No such file or directory in /wp-content/plugins/really-simple-captcha/really-simple-captcha.php on line 261
PHP Warning:  unlink(/wp-content/uploads/wpcf7_captcha/1016550241.txt): No such file or directory in /wp-content/plugins/really-simple-captcha/really-simple-captcha.php on line 262

    I’ve looked in FTP and the file certainly doesn’t exist, so it’s trying to unlink a file that’s just not there ( as far as I can tell ). I can’t consistently replicate the issue either which is bothersome. It does appear to affect many of my websites with different plugins / themes installed though.

Viewing 4 replies - 1 through 4 (of 4 total)
  • Plugin Author Takayuki Miyoshi

    (@takayukister)

    Maybe it should do more reliable file existence checking there. I’ll add it into the next release.

    Thanks for your post, @howdy_mcgee. I am having the exact same problem.

    It might be related to browser caching. When the Warnings are throwing on a page access or soft page refresh, if I do a CTRL+F5 (full/hard refresh), then the Warnings do not throw. You can test browser-caching settings in the various places that it might be enabled, such as your caching plug-in or Cloudflare’s config.

    function generate_image is what triggers the function cleanup (where these calls are made). That should only happen when a page with captcha is loaded, so I am confused about why the Warnings are throwing on blog post pages, and not on the Contact Form page, because I don’t have the captcha module installed on blog post pages ..

    Possibly unrelated, but in the past I have had similar trouble with Cloudflare’s Auto Minify feature. I am going to turn it off and wait and test.

    Author: any clues here?

    • This reply was modified 7 years, 8 months ago by zzzaaabbb.

    Same warnings for me, shown on different pages, not consistently — ≈ 5–10% of time (still annoying). Warnings go away after reloading the page, no Ctrl-F5 (cache bypass) is needed. It happens on all pages, with or without ContactForm7, as @zzzaaabbb above says.

    I hope this helps find and fix the issue.

    Ah, just found out that Really Simple Captcha is no longer recommended, switched to reCaptcha following these instructions, thanks!

Viewing 4 replies - 1 through 4 (of 4 total)
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