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PHP MYSQL: How to select part of string?

Posted on 2008-06-10
8
1,694 Views
Last Modified: 2013-12-13
PHP MySQL


Hello,

How do I code in a PHP script to look for part of a string retrieved from MySQL database?


For example...

MySQL database field contents: (call this $url)
xxxxxxxxx=123.0
xxxxxxxxx=5161163.0
xxxxxxxxx=25523.0
xxxxxxxxx=11.0


I want to extract the value between = and .0
so I get
123
5161163
25523
11


So in PHP, we will have something like

$value = substring of $url

but I don't know how to limit the substring to be between = and .0


0
Comment
Question by:gingera
  • 2
  • 2
  • 2
  • +2
8 Comments
 
LVL 24

Assisted Solution

by:glcummins
glcummins earned 200 total points
ID: 21754389
Use the following two lines. At the end, your desired value will be stored in '$value':

list ($xxxxx, $floatNumber) = explode('=', $url);
list ($value, $decimalPortion) = explode('.', $floatNumber);
0
 
LVL 48

Accepted Solution

by:
hernst42 earned 300 total points
ID: 21754402
You can use a regular expression like

preg_match('/=(.*)\.0/', $url, $m);
$value = $m[1];

echo $value;
0
 
LVL 9

Expert Comment

by:michofreiha
ID: 21754435
strstr($xxxxx, '.0');
0
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LVL 19

Expert Comment

by:LordOfPorts
ID: 21754440
Try:

$value = substr($url, strrpos($url, "."));
0
 
LVL 19

Expert Comment

by:LordOfPorts
ID: 21754485
Correction, ommitted 0 for start:

$value = substr($url, 0, strrpos($url, "."));
0
 

Author Comment

by:gingera
ID: 21755041
Thanks guys!

I have only tried hernst42's suggested solution, and it works for me.

I want to be fair in allocating points  to others who contributed correct solutions but I don't have the time to test out all the other suggestions at the moment.

Could hernst confirm if the other solutions will work?
0
 
LVL 48

Expert Comment

by:hernst42
ID: 21757521
the solution of glummicus should also work, the others not
0
 

Author Closing Comment

by:gingera
ID: 31465899
THANKS!
0

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