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Changing Your PHP Version How to do it safely.BEFORE ANYTHINGTake a full backup.CHECK COMPATIBILITYConfirm your... Checking Your PHP Version Finding out what you are running.IN CPANELThe PHP selector shows the current version for your... Diagnosing Slow PHP Execution When pages take too long.WHAT TO ESTABLISH FIRSTWhether it is all pages or some Whether it... Diagnosing a 500 Internal Server Error The generic error.WHAT IT MEANSSomething failed and the server could not produce a page.It is... Diagnosing a Blank Page The white screen.WHAT IT MEANSA fatal PHP error with error display disabled.The server produced... Finding PHP Errors Where the information is.THE ERROR LOGcPanel, Errors. Or the error log file in your account.That... Increasing Execution Time When scripts take too long.THE SYMPTOMA process stops partway: an import, a backup, a bulk... Increasing PHP Memory Limit The most commonly adjusted setting.THE SYMPTOMA fatal error stating that allowed memory size was... Increasing Upload File Size Uploading larger files.THE SYMPTOMAn upload fails, or the interface states a maximum smaller than... Max Input Vars and Silent Failures A setting that causes confusing problems.WHAT IT LIMITSHow many individual form fields may be... PHP Configuration: Everything That Matters, Briefly The whole category in one page.THE VERSIONUse a current supported one. Newer is faster and... PHP Extensions Additional functionality.WHAT THEY AREModules adding capability: image processing, encryption,... PHP Settings for Other Applications Beyond WordPress.THE GENERAL APPROACHCheck the application's requirements page.It states the PHP... PHP Settings for WooCommerce Shops need more.WHY SHOPS NEED MOREMore plugins, more data, larger operations.Imports, exports... PHP Settings for WordPress Common requirements.WHAT WORDPRESS TYPICALLY NEEDSA current PHP version Sufficient memory for... PHP and Memory Exhaustion Running out of memory.THE ERRORAllowed memory size exhausted, naming the limit and the file.WHAT... Per-Directory PHP Versions Different versions for different sites.WHAT IT ALLOWSRunning one version on your main site and a... Testing PHP Changes Safely Not breaking your live site.BEFORE ANY CHANGEBack up.For a version change, that is not... Understanding PHP Error Types What each means.FATAL ERRORExecution stops. The page does not render.Usually a missing function,... Understanding PHP Limits What constrains your application.MEMORY LIMITHow much memory one script may use.Exceeded: a fatal... What Breaks When You Change PHP Version Common problems.REMOVED FUNCTIONSOlder code calling functions removed in newer versions produces... What PHP Is and Why Your Site Needs It The language behind most websites.WHAT IT DOESRuns on the server, generates the page, sends the... When to Ask Us About PHP Where we can help.WHAT WE CAN DOTell you which versions are available Enable an extension not... Why You Should Use a Current PHP Version Two reasons that matter.SPEEDNewer versions execute substantially faster.The difference on a busy...

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