Web студия "GrandView"

Описание

bool php_check_syntax ( string file_name [, string &error_message] )

For technical reasons, this function is deprecated and removed from PHP. Instead, use php -l somefile.php from the commandline.

The php_check_syntax() function performs a syntax (lint) check on the specified filename testing for scripting errors. This is similar to using php -l from the commandline except php_check_syntax() will execute (but not output) the checked file_name. For example, if a function is defined in file_name, this defined function will be available to the file that executed php_check_syntax(), but output from file_name will be suppressed.

Список параметров

file_name: The name of the file being checked.
error_message: If the error_message parameter is used, it will contain the error message generated by the syntax check. error_message is passed by reference.

Список изменений

Версия	Описание
5.0.5	This function was removed from PHP.
5.0.3	Calling exit() after php_check_syntax() resulted in a Segfault.
5.0.1	`error_message` is passed by reference.

Примеры

php -l somefile.php

Результатом выполнения данного примера будет что-то подобное:

PHP Parse error: unexpected T_STRING in /tmp/somefile.php on line 81

add a note User Contributed Notes
php_check_syntax

nicolas dot grekas+php at gmail dot com
24-Aug-2007 04:23


This detects parse errors without executing the code:



<?php



function eval_syntax($code)

{

    $b = 0;



    foreach (token_get_all($code) as $token)

    {

             if ('{' == $token) ++$b;

        else if ('}' == $token) --$b;

    }



    if ($b) return false; // Unbalanced braces would break the eval below

    else

    {

        ob_start(); // Catch potential parse error messages

        $code = eval('if(0){' . $code . '}'); // Put $code in a dead code sandbox to prevent its execution

        ob_end_clean();



        return false !== $code;

    }

}



?>

Quis at IVEGOTspamENOUGHomicidio dot nl
24-Mar-2007 04:42


<?PHP

// Think about shell-command escaping if you`re using user-input

function php_check_syntax($file,&$error) {

  exec("php -l $file",$error,$code);

  if($code==0)

    return true;

  return false;

}

?>



Note: This is UNIX

Note: If your environment-variable PATH is not set correctly, you will need to insert the path to php (like /usr/local/bin/php)

phpdoc at michaeldouma dot com
15-Feb-2005 08:38


PROBLEM: Your page is blank, or you can not define any functions in an include. 



As mentioned below, the php_check_syntax function will include your file. So you may not be able to include it again. If you have an include later in your code, and you define any functions, you will get an error, or in some cases a blank page.

add a note

php_check_syntax

Описание

Список параметров

Возвращаемые значения

Список изменений

Примеры

Смотрите также