asked on

how to check data for double quotes using ereg fn?

hai,
$piece[2]='"-25.53"';
if(ereg("^\-{0,1}[0-9]{0,}\.{0,1}[0-9]{0,}$",trim($piece[2]))){
//other codes
}// this line is to check for the data -25.53.
but I want to check for double quotes also.
so how do I do? anyother alternative code is also welcome.

Thanks

ASKER CERTIFIED SOLUTION

axis_img

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axis_img

In addition, a couple of resources for preg specific pattern documentation:

http://www.php.net/manual/en/pcre.pattern.modifiers.php
http://www.php.net/manual/en/pcre.pattern.syntax.php
http://www.php.net/manual/en/function.preg-match.php

Regards,
Barry

us111

<?
$piece[2]='"-25.53"';
if(ereg("^\"\-{0,1}[0-9]{0,}\.{0,1}[0-9]{0,}\"$",trim($piece[2]))){
print "ok";
}
?>

axis_img

I'm curious, us111... Why did you you just post a repeat of my code? Other than the fact that I optimized {0,1} with "?", and removed the unnecessary escaping \ from in front of the -, it is the exact same code. That seems a bit odd to me that you would do that.

Anyway, just another note on using preg_match(). You really should look into it, because ereg() is much much slower.

This is the better option.

if(preg_match("/^\"-?[0-9]*\.?[0-9]*\"$/U", trim($piece[2]))) {
// other codes
}

If you are not sure about how some of it works, let me know.

Regards,
Barry

us111

hmm well I don't know , sorry axis_img I was tired :)