varchar read only 4 first chars..?

soniared2002

Hi all,
I have a variable $resolution (varchar).
$resolution=1990x2000
I am trying to get the first 4 digits...(the width), or i am trying to read the variable till the x...how cani do it? is it possible?..can i cut the varibale?
Thanx,
sofia

stolzyboy

<?
$var = "1990x2000";
$var = substr_replace($var, '', 4);
echo $var;
?>

soniared2002

Wonderful, works.
A new question : how to select the last 4 than?
thanx 🙂
is there a functino for that?

soniared2002

oh..i figured it out..
string substr_replace ( string string, string replacement, int start [, int length])

thanx

soniared2002

why this gives me an error:
#string substr ( string string, int start [, int length])
$width = substr($resolution, 1[,4]);
------gives:
Parse error: parse error, unexpected '['

WHY??
thanx

cgraz

from the php manual, when you see something in brackets like that, it means its an optional parameter; you're not actually supposed to put it between brackets. Change

$width = substr($resolution, 1[,4]);

$width = substr($resolution, "1", "4");

Cgraz