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—php_optimization [2011/11/22 17:25] (current) – created - external edit 127.0.0.1
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 +====== PHP Optimization ======
  
 +  * [[PHP]]
 +  * [[xhprof]]
 +  * [[http://us.php.net/manual/en/configuration.changes.modes.php|Where a configuration setting may be set]]
 +  * [[http://us.php.net/manual/en/ini.list.php|List of php.ini directives]]
 +
 +=== PHP Configuration Overrides ===
 +
 +^ Mode ^ Meaning ^
 +| PHP_INI_USER | Entry can be set in user scripts (like with ini_set()) |
 +| PHP_INI_PERDIR | Entry can be set in php.ini, .htaccess or httpd.conf |
 +| PHP_INI_SYSTEM | Entry can be set in php.ini or httpd.conf |
 +| PHP_INI_ALL | Entry can be set anywhere |
 +
 +=== Configuration Settings ===
 +
 +== short_open_tag ==
 +
 +  * [[http://us.php.net/manual/en/ini.core.php#ini.short-open-tag|description]]
 +
 +Allow the <? tag.  Otherwise, only <?php and <script> tags are recognized.
 +
 +  * Default: Off
 +  * Recommended: Off
 +  * Changeable: PHP_INI_ALL
 +
 +== zlib.output_compression ==
 +
 +  * [[http://us.php.net/manual/en/zlib.configuration.php#ini.zlib.output-compression|description]]
 +
 +Transparent output compression using the zlib library
 +
 +  * Default: Off
 +  * Recommended: On
 +  * Changeable: PHP_INI_ALL
 +
 +== register_long_arrays ==
 +
 +  * [[http://us.php.net/manual/en/ini.core.php#ini.register-long-arrays|description]]
 +
 +Whether or not to register the old-style input arrays, HTTP_GET_VARS and friends.
 +
 +  * Default: On
 +  * Recommended: Off
 +  * Changeable: PHP_INI_PERDIR
 +
 +== register_argc_argv ==
 +
 +  * [[http://us.php.net/manual/en/ini.core.php#ini.register-argc-argv|description]]
 +
 +This directive tells PHP whether to declare the argv&argc variables (that would contain the GET information).
 +
 +  * Default: On
 +  * Recommended: Off
 +  * Changeable: PHP_INI_PERDIR
 +
 +== mysql.allow_persistent ==
 +
 +  * [[http://us.php.net/manual/en/mysql.configuration.php#ini.mysql.allow-persistent|description]]
 +
 +Allow or prevent persistent links.
 +
 +  * Default: On
 +  * Recommended: Off
 +  * Changeable: PHP_INI_SYSTEM
 +
 +== session.cache_limiter ==
 +
 +  * [[http://us.php.net/manual/en/session.configuration.php#ini.session.cache-limiter|description]]
 +
 +Set to {nocache,private,public,} to determine HTTP caching aspects or leave this empty to avoid sending anti-caching headers.
 +
 +  * Default: nocache
 +  * Recommended: public, let the browser cache data
 +  * PHP_INI_ALL

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