/**
* Uses a separate process to perform a syntax check on a PHP sourcefile.
*
* PHPUnit_Util_Fileloader::$phpBinary contains the path to the PHP
* interpreter used for this. If unset, the following assumptions will
* be made:
*
* 1. When the PHP CLI/CGI binary configured with the PEAR Installer
* (php_bin configuration value) is readable, it will be used.
*
* 2. When PHPUnit is run using the CLI SAPI and the $_SERVER['_']
* variable does not contain the string "PHPUnit", $_SERVER['_']
* is assumed to contain the path to the current PHP interpreter
* and that will be used.
*
* 3. When PHPUnit is run using the CLI SAPI and the $_SERVER['_']
* variable contains the string "PHPUnit", the file that $_SERVER['_']
* points is assumed to be the PHPUnit TextUI CLI wrapper script
* "phpunit" and the binary set up using #! on that file's first
* line of code is assumed to contain the path to the current PHP
* interpreter and that will be used.
*
* 4. The current PHP interpreter is assumed to be in the $PATH and
* to be invokable through "php".
*
* @param string $filename
* @throws RuntimeException
* @access protected
* @static
* @since Method available since Release 3.0.0
*/
protected static function syntaxCheck($filename)
{
if (self::$phpBinary === NULL) {
if (is_readable('@php_bin@')) {
self::$phpBinary = '@php_bin@';
} else {
if (PHP_SAPI == 'cli' && isset($_SERVER['_'])) {
self::$phpBinary = $_SERVER['_'];
if (strpos(self::$phpBinary, 'phpunit') !== FALSE) {
$file = file(self::$phpBinary);
$tmp = explode(' ', $file[0]);
self::$phpBinary = trim($tmp[1]);
}
}
}
if (!is_readable(self::$phpBinary)) {
self::$phpBinary = 'php';
} else {
self::$phpBinary = escapeshellarg(self::$phpBinary);
}
}
$command = self::$phpBinary . ' -l ' . escapeshellarg($filename);
if (DIRECTORY_SEPARATOR == '\\') {
$command = '"' . $command . '"';
}
$output = shell_exec($command);
if (strpos($output, 'Errors parsing') !== FALSE) {
throw new RuntimeException($output);
}
}