{"id":3191,"date":"2018-01-19T22:01:44","date_gmt":"2018-01-19T22:01:44","guid":{"rendered":"http:\/\/pariswells.com\/blog\/?p=3191"},"modified":"2018-04-20T13:18:42","modified_gmt":"2018-04-20T13:18:42","slug":"debugging-and-slowness-with-php","status":"publish","type":"post","link":"https:\/\/pariswells.com\/blog\/code\/debugging-and-slowness-with-php","title":{"rendered":"Debugging and Slowness with Php"},"content":{"rendered":"
  1. Install :\u00a0Xdebug<\/a>\u00a0<\/li><\/ol>

    Can be done by install then entering the following :\u00a0\u00a0\/etc\/php\/7.1\/fpm\/php.ini<\/strong>:<\/p>

    zend_extension = \/usr\/lib\/php\/20160303\/xdebug.so\r\nxdebug.profiler_enable = 0\r\nxdebug.profiler_output_name = cachegrind.out.%t\r\nxdebug.profiler_enable_trigger = 1\r\nxdebug.profiler_output_dir = \/tmp\r\nxdebug.profiler_enable_trigger_value = \"<super secret key>\"\r\n<\/code><\/pre><\/div><\/div>
    In order, the configuration goes as follows: load the module, disable profiling be default, set the filename, enable triggering via GET\/POST parameter, output in \/tmp and only profile when given the key.<\/p>
    Restart php-fpm and you should be good to go.<\/p>
    2) Use the\u00a0?XDEBUG_PROFILE=<super secret key> appended to any page you want to debug and the debug file will be put in\u00a0\/tmp.<\/p>
    3) Open the debug file using something like :\u00a0https:\/\/github.com\/jokkedk\/webgrind<\/a>\u00a0 For Analysis specifically for reducing\u00a0<\/p>
    Invocation Count<\/strong>\u00a0is how many times that function was called. A simple tip for reducing this is to pull out any repetitive function calls from a for-loop into a single variable.<\/p>
    \u00a0Total Self Cost is<\/strong>\u00a0the total percentage or time that the function is responsible for. You can improve this by reducing code complexity, using built-in native functions or removing unused variables.<\/p>","protected":false},"excerpt":{"rendered":"
    Install :\u00a0Xdebug\u00a0Can be done by install then entering the following :\u00a0\u00a0\/etc\/php\/7.1\/fpm\/php.ini:zend_extension = \/usr\/lib\/php\/20160303\/xdebug.so xdebug.profiler_enable = 0 xdebug.profiler_output_name = cachegrind.out.%t xdebug.profiler_enable_trigger = 1 xdebug.profiler_output_dir = \/tmp xdebug.profiler_enable_trigger_value = […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[1391,698,2397,2396,2398],"class_list":["post-3191","post","type-post","status-publish","format-standard","hentry","category-code","tag-debug","tag-php","tag-profile","tag-slowness","tag-xdebug"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t