Xhprof.php

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<?php
class Xhprof {
    protected static $enabled;
 
    public static function isEnabled() {
        return self::$enabled;
    }
 
    public static function enable( $flags = 0, $options = [] ) {
        if ( self::isEnabled() ) {
            throw new Exception( 'Profiling is already enabled.' );
        }
        self::$enabled = true;
        if ( function_exists( 'xhprof_enable' ) ) {
            xhprof_enable( $flags, $options );
        } elseif ( function_exists( 'tideways_enable' ) ) {
            tideways_enable( $flags, $options );
        } else {
            throw new Exception( "Neither xhprof nor tideways are installed" );
        }
    }
 
    public static function disable() {
        if ( self::isEnabled() ) {
            self::$enabled = false;
            if ( function_exists( 'xhprof_disable' ) ) {
                return xhprof_disable();
            } else {
                // tideways
                return tideways_disable();
            }
        }
    }
}