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Editorial Team
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Asked: 2026-06-15T23:47:14+00:00

I am beginner with PHP. I faced that problem when I start my first

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I am beginner with PHP. I faced that problem when I start my first SQL queries:

Database query On Pages failed : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘[‘id’]}’ at line 1

There is my SELECT command :

$page_set = mysql_query(
    "SELECT * FROM pages WHERE subject_id  = {[$subject'id']}", $connection
);

I checked all my database tables and everything is correct. This query works :

$page_set = mysql_query("SELECT * FROM pages" ,$connection)
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1 Answer

  1. Editorial Team

    Going forward, construct your query string in a separate variable like this:

    $sql = "SELECT * FROM pages WHERE subject_id  = {[$subject'id']}";

    Then run the query like this:

    $res = mysql_query($sql);

    If you do that you can see the fully resolved query string with something like this:

    if (!$res) die("FAIL: $sql BECAUSE: " . mysql_error());

    You must test the results value from mysql_query() — it is not a black box; it can and will fail for reasons outside of your control. When the failure occurs, you want to recognize it and handle the error conditions.

    Siedbar note: the mysql extension is now deprecated by PHP, so you might want to choose PDO or MySQLi for your current / future work.

    And if you’re new to PHP, this is a really great book to help you get started:
    http://www.sitepoint.com/books/phpmysql5/

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