Stop caching for PHP 5.5.3 in MAMP

Question

Installed MAMP on a new Macbook with PHP 5.5.3.

Reload and refresh do nothing. Still nothing. Google around for a few minutes trying to find out what is wrong, come

Answer 1

Took me so long to figure out it was a MAMP problem! Why would OPcache be enabled by default-- and require php.ini tinkering to disable-- in an app that's supposed to be used for testing websites? Anyway, I read through this whole thread and tried the various solutions.

Here are my notes on how each solution works and considerations for selecting a solution.

Each solution works on its own; no need for redundancy.

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Webpage code solution

opcache_reset();

• Must be added in the webpage code.
• Forces all scripts to be reloaded.
• Works without restarting MAMP server.

Server configuration solutions

Important: Use the php.ini file in /Applications/MAMP/bin/php/php5.5.3/conf/php.ini and not in /Applications/MAMP/conf/php5.5.3/php.ini. Adjust accordingly if you're using a different version of PHP.

enable=0

[OPcache]
zend_extension="/Applications/MAMP/bin/php/php5.5.3/lib/php/extensions/no-debug-non-zts-20121212/opcache.so"
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1
enable=0

• Must be added under [OPcache] in php.ini.
• Disables OPcache.
• Requires MAMP server restart.

opcache.revalidate_freq=0

[OPcache]
zend_extension="/Applications/MAMP/bin/php/php5.5.3/lib/php/extensions/no-debug-non-zts-20121212/opcache.so"
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=0
opcache.fast_shutdown=1
opcache.enable_cli=1

• Modify opcache.revalidate_freq under [OPcache] in php.ini.
• Makes OPcache check for updates every 0 seconds instead of every 60 seconds.
• Requires MAMP server restart.

Commenting out [OPcache]

;[OPcache]
;zend_extension="/Applications/MAMP/bin/php/php5.5.3/lib/php/extensions/no-debug-non-zts-20121212/opcache.so"
;opcache.memory_consumption=128
;opcache.interned_strings_buffer=8
;opcache.max_accelerated_files=4000
;opcache.revalidate_freq=60
;opcache.fast_shutdown=1
;opcache.enable_cli=1

• Comment out the entire [OPcache] section in php.ini.
• Removes OPcache from the PHP server.
• Requires MAMP server restart.

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Considerations

Choose the webpage code solution if:

• You just need to force script refreshing for a particular project
• You don't want to restart the MAMP server
• You don't want to edit php.ini

Choose a server configuration solution if:

• You want to disable caching by default instead of having to do it in every project
• You're comfortable with editing php.ini

I personally prefer enable=0 since it's the simplest solution for me, and I need caching disabled by default.

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References

• http://php.net/manual/en/function.opcache-reset.php
• http://php.net/manual/en/opcache.configuration.php