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trimming strings

Posted on 2006-06-22
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Last Modified: 2006-11-18
i have 67 strings that can vary in what values they hold.

an example is:

MS 300 Series - Management System Monitoring and Non Conformance Control/MS-301 Internal Audit Report.doc
MS 300 Series - Management System Monitoring and Non Conformance Control/MS-302 - The Corrective Action Process.vsd
MS 300 Series - Management System Monitoring and Non Conformance Control/MS-302 Corrective Action Request.doc
MS 300 Series - Management System Monitoring and Non Conformance Control/MS-303 - Preventive Action.vsd
MS 300 Series - Management System Monitoring and Non Conformance Control/MS-310 - Assessment of Contractors Sht 1.vsd

but i only what to display:

MS-301 Internal Audit Report
MS-302 - The Corrective Action Process
MS-302 Corrective Action Request
MS-303 - Preventive Action
MS-310 - Assessment of Contractors Sht 1

... im not too sure how to trim both the beginning and the end...
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Question by:ellandrd
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3 Comments
 
LVL 36

Accepted Solution

by:
Zyloch earned 2000 total points
ID: 16962230
Hi ellandrd,

Well, you seem to only want the end, and conveniently, there is a / between them and a . between the extension. You can merely do:

$a_strings = array();
$a_strings[] = 'MS 300 Series - Management System Monitoring and Non Conformance Control/MS-301 Internal Audit Report.doc';
$a_strings[] = 'MS 300 Series - Management System Monitoring and Non Conformance Control/MS-302 - The Corrective Action Process.vsd';
//etc.etc.

$a_parsed_strings = array();
foreach ($a_strings as $v)
{
    $slash_pos = strrpos($v, '/');
    $dot_pos = strrpos($v, '.');
    $a_parsed_strings[] = substr($v, $slash_pos + 1, $dot_pos - $slash_pos - 1);
}

print_r($a_parsed_strings);

Regards,
Ted
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LVL 37

Expert Comment

by:Harisha M G
ID: 16962342
Hi, you may also want to try regular expressions...

<?php
$strarr = array();
$strarr[] = 'MS 300 Series - Management System Monitoring and Non Conformance Control/MS-301 Internal Audit Report.doc';
$strarr[] = 'MS 300 Series - Management System Monitoring and Non Conformance Control/MS-302 - The Corrective Action Process.vsd';
// ... add as many strings as required, or get from database..

$req = array();
foreach ($strarr as $str)
{
    preg_match("#/([-\s\w]+)\.#s",$str,$match);
    $req[] = $match[1];
}

print_r($req);
?>


---
Harish
0
 
LVL 36

Expert Comment

by:Zyloch
ID: 16962375
Yep, regular expressions will also work as well, and is probably a better bet if the format of your strings start to become a bit more irregular.
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