Wordpress Debug

wp-config.de

define( 'WP_DEBUG', true ); 
define( 'SAVEQUERIES', true );

Profiling über functions.php

Wordpress Profiling tools

I like to add profiling tools in a separate file, which I then include from functions.php when needed: <pre> <?php if ( !defined('SAVEQUERIES') && isset($_GET['debug']) && $_GET['debug'] == 'sql' ) define('SAVEQUERIES', true); if ( !function_exists('dump') ) : /** * dump() * * @param mixed $in * @return mixed $in **/ function dump($in = null) { echo '<pre style="margin-left: 0px; margin-right: 0px; padding: 10px; border: solid 1px black; background-color: ghostwhite; color: black; text-align: left;">'; foreach ( func_get_args() as $var ) { echo "\n"; if ( is_string($var) ) { echo "$var\n"; } else { var_dump($var); } } echo '</pre>' . "\n"; return $in; } # dump() endif; /** * add_stop() * * @param mixed $in * @param string $where * @return mixed $in **/ function add_stop($in = null, $where = null) { global $sem_stops; global $wp_object_cache; $queries = get_num_queries(); $milliseconds = timer_stop() * 1000; $out = "$queries queries - {$milliseconds}ms"; if ( function_exists('memory_get_usage') ) { $memory = number_format(memory_get_usage() / ( 1024 * 1024 ), 1); $out .= " - {$memory}MB"; } $out .= " - $wp_object_cache->cache_hits cache hits / " . ( $wp_object_cache->cache_hits + $wp_object_cache->cache_misses ); if ( $where ) { $sem_stops[$where] = $out; } else { dump($out); } return $in; } # add_stop() /** * dump_stops() * * @param mixed $in * @return mixed $in **/ function dump_stops($in = null) { if ( $_POST ) return $in; global $sem_stops; global $wp_object_cache; $stops = ''; foreach ( $sem_stops as $where => $stop ) $stops .= "$where: $stop\n"; dump("\n" . trim($stops) . "\n"); if ( defined('SAVEQUERIES') && $_GET['debug'] == 'sql' ) { global $wpdb; foreach ( $wpdb->queries as $key => $data ) { $query = rtrim($data[0]); $duration = number_format($data[1] * 1000, 1) . 'ms'; $loc = trim($data[2]); $loc = preg_replace("/(require|include)(_once)?,\s*/ix", '', $loc); $loc = "\n" . preg_replace("/,\s*/", ",\n", $loc) . "\n"; dump($query, $duration, $loc); } } if ( $_GET['debug'] == 'cache' ) dump($wp_object_cache->cache); if ( $_GET['debug'] == 'cron' ) { $crons = get_option('cron'); foreach ( $crons as $time => $_crons ) { if ( !is_array($_crons) ) continue; foreach ( $_crons as $event => $_cron ) { foreach ( $_cron as $details ) { $date = date('Y-m-d H:m:i', $time); $schedule = isset($details['schedule']) ? "({$details['schedule']})" : ''; if ( $details['args'] ) dump("$date: $event $schedule", $details['args']); else dump("$date: $event $schedule"); } } } } return $in; } # dump_stops() add_action('init', create_function('$in', ' return add_stop($in, "Load"); '), 10000000); add_action('template_redirect', create_function('$in', ' return add_stop($in, "Query"); '), -10000000); add_action('wp_footer', create_function('$in', ' return add_stop($in, "Display"); '), 10000000); add_action('admin_footer', create_function('$in', ' return add_stop($in, "Display"); '), 10000000); /** * init_dump() * * @return void **/ function init_dump() { global $hook_suffix; if ( !is_admin() || empty($hook_suffix) ) { add_action('wp_footer', 'dump_stops', 10000000); add_action('admin_footer', 'dump_stops', 10000000); } else { add_action('wp_footer', 'dump_stops', 10000000); add_action("admin_footer-$hook_suffix", 'dump_stops', 10000000); } } # init_dump() add_action('wp_print_scripts', 'init_dump'); /** * dump_phpinfo() * * @return void **/ function dump_phpinfo() { if ( isset($_GET['debug']) && $_GET['debug'] == 'phpinfo' ) { phpinfo(); die; } } # dump_phpinfo() add_action('init', 'dump_phpinfo'); /** * dump_http() * * @param array $args * @param string $url * @return array $args **/ function dump_http($args, $url) { dump(preg_replace("|/[0-9a-f]{32}/?$|", '', $url)); return $args; } # dump_http() /** * dump_trace() * * @return void **/ function dump_trace() { $backtrace = debug_backtrace(); foreach ( $backtrace as $trace ) dump( 'File/Line: ' . $trace['file'] . ', ' . $trace['line'], 'Function / Class: ' . $trace['function'] . ', ' . $trace['class'] ); } # dump_trace() if ( $_GET['debug'] == 'http' ) add_filter('http_request_args', 'dump_http', 0, 2); ?> </pre>

shareimprove this answer edited Jan 26 '11 at 14:14

community wiki 2 revs, 2 users 93% Denis

is there a quick way to modify this so that script only gets called when your an administrator AND append something to the URL to show the debug info? – NetConstructor.com Feb 22 '11 at 19:58 1 That's how it's done in my theme: semiologic.com/software/sem-reloaded -- the /inc/debug.php is included by /functions.php or /inc/init.php (can't recall off the top of my head). – Denis Feb 23 '11 at 9:50