library/rampage/core/UserConfig.php
protected function processConfigVariables($value, $prefix = null)
    {
        if ($prefix && !preg_match('~^[a-z0-9._-]*$~i', $prefix)) {
            throw new exception\InvalidArgumentException('Invalid config var prefix: ' . $prefix);
        }

        if ($prefix) {
            // dots should be literal in regex
            $prefix = strtr($prefix, '.', '\\.');
        }

        $config = $this;
        $value = preg_replace_callback("~{{({$prefix}[a-z0-9._-]+)}}~i", function($match) use ($config) {
            return (string)$config->getConfigValue($match[1], '');
        }, $value);

        return $value;
    }
protected function processConfigVariables($value, $prefix = null)
    {
        if ($prefix && !preg_match('~^[a-z0-9._-]*$~i', $prefix)) {
            throw new exception\InvalidArgumentException('Invalid config var prefix: ' . $prefix);
        }

        if ($prefix) {
            // dots should be literal in regex
            $prefix = strtr($prefix, '.', '\\.');
        }

        $config = $this;
        $value = preg_replace_callback("~{{({$prefix}[a-z0-9._-]+)}}~i", function($match) use ($config) {
            return (string)$config->getConfigValue($match[1], '');
        }, $value);

        return $value;
    }
protected function processConfigVariables ( $ value , $ prefix = null ) { if ( $ prefix && ! preg_match ( '~^[a-z0-9._-]*$~i' , $ prefix ) ) { throw new exception \ InvalidArgumentException ( 'Invalid config var prefix: ' . $ prefix ) ; } if ( $ prefix ) { // dots should be literal in regex $ prefix = strtr ( $ prefix , '.' , '\\.' ) ; } $ config = $ this ; $ value = preg_replace_callback ( "~{{({$prefix}[a-z0-9._-]+)}}~i" , function ( $ match ) use ( $ config ) { return ( string ) $ config -> getConfigValue ( $ match [ 1 ] , '' ) ; } , $ value ) ; return $ value ; }
Replace placeholders with config values

@param string $value
@param string $prefix
Replace placeholders with config values