Scan PHP array using Javascript [closed]

Question

$namesSelect = "SELECT username FROM users";  
$names = mysql_query($namesSelect);
$nameCheck = mysql_fetch_array($names)

This selects all names from the users table and sets them to the array $names.

What I need to do is look through this array using javascript, to find if the name that the user has entered matches. I have no idea where to start with this, so any help would be appreciated.

How many users are expected to be in the database? Is this less than 100, or maybe rather more than 100,000? — Tadeck
– Tadeck, Commented Feb 2, 2012 at 21:20
You need to use Ajax. Your javascript function would call a PHP page (with ajax) that runs the MySql query and returns the results. Then you can process those results with javascript. — AndrewR
– AndrewR, Commented Feb 2, 2012 at 21:20
Could you please at least search the internet for what Javascript is before asking here? The simple answer is: not possible, since PHP is server-side and javascript is client-side. (Except if you're trying to go really exotic, but that doesnt seem to be the case.) — Carsten
– Carsten, Commented Feb 2, 2012 at 21:20

Madara's Ghost · Accepted Answer · 2012-02-02 21:24:24Z

4

You're approaching this wrong.

Have the user submit the name, then check it with PHP.

You can check it by placing the name the user has entered to the WHERE clause of your query.

edited Feb 2, 2012 at 21:24

answered Feb 2, 2012 at 21:18

Madara's Ghost

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2

Or, rather, have MySQL scan it WHERE username = 'Joe'.

gen_Eric
– gen_Eric

02/02/2012 21:22:01
Commented Feb 2, 2012 at 21:22

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