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a3b80f551f
The `wp-before-template` and `wp-template` metric intend to separate WordPress core's own bootstrap process from any logic that is part of the eventual template loaded. The appropriate hook for that is the `template_include` filter as that occurs right before the template file is included. Props mukesh27, joemcgill. Fixes #58674. git-svn-id: https://develop.svn.wordpress.org/trunk@56162 602fd350-edb4-49c9-b593-d223f7449a82
46 lines
1018 B
PHP
46 lines
1018 B
PHP
<?php
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add_filter(
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'template_include',
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static function( $template ) {
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global $timestart;
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$server_timing_values = array();
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$template_start = microtime( true );
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$server_timing_values['before-template'] = $template_start - $timestart;
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ob_start();
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add_action(
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'shutdown',
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static function() use ( $server_timing_values, $template_start ) {
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global $timestart;
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$output = ob_get_clean();
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$server_timing_values['template'] = microtime( true ) - $template_start;
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$server_timing_values['total'] = $server_timing_values['before-template'] + $server_timing_values['template'];
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$header_values = array();
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foreach ( $server_timing_values as $slug => $value ) {
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if ( is_float( $value ) ) {
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$value = round( $value * 1000.0, 2 );
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}
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$header_values[] = sprintf( 'wp-%1$s;dur=%2$s', $slug, $value );
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}
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header( 'Server-Timing: ' . implode( ', ', $header_values ) );
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echo $output;
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},
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PHP_INT_MIN
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);
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return $template;
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},
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PHP_INT_MAX
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);
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