[SOLVED] Regular Expression in PHP using preg_split?

[fredroines]

I have a string like :

$str= 'EM-SA0048-SIG_CODE-AA-ISTE-0033'

so using preg_split , I would like to get :

Array

(

[0] => EM

[1] =>SA0048

[2] => SIG_CODE

[3]=>AA-ISTE

[4]=>-0033

)

 

Please somebody can help me with this issue

Thanks

[ddrudik]

Please define your rules for splitting the string, you appear to be splitting on - but not within AA-ISTE.

if it is just splitting on "-" you could just use explode() instead.

[fredroines]

Sort of , yes , It must be splitting on - , but the 3th part or element must not be ( [3]=>"XXXX-XXXX" ) and [4]=> 1234 (numeric part)

[ddrudik]

Possibly:

Raw Match Pattern:
(?<!-[a-z]{2})-(?![a-z]{4}-)

PHP Code Example:
<?php
$sourcestring="your source string";
$matches=preg_split('/(?<!-[a-z]{2})-(?![a-z]{4}-)/i',$sourcestring);
echo "<pre>".print_r($matches,true);
?>

$matches Array:
(
    [0] => EM
    [1] => SA0048
    [2] => SIG_CODE
    [3] => AA-ISTE
    [4] => 0033
)

 

Depends on how it matches your data.

[effigy]

Do you want to retain the last hyphen as your example shows?

 

<pre>
<?php
$str = 'EM-SA0048-SIG_CODE-AA-ISTE-0033';
print_r(preg_split('/(?=-\d{4}$)|-(?!(?:.{4}-)?\d{4}$)/', $str));
?>
</pre>

[.josh]

If that's how your string is going to always look like, you could still just use explode and then glue elements 3 and 4 back together...

[fredroines]

All of you are really good , It works ,but could it be more generic for [3] & [4] element, I mean

let says that those elements are not a fix length example:

 

EM-SA0048-SIG_CODE-AAXXX-IS-0033 or

 

EM-SA0048-SIG_CODE-AAXX-ISTEXXX-0033 or

 

EM-SA0048-SIG_CODE-AAXXXXXX-ISTEXXXXXXXXXXX-0033

 

Could be it possible?

 

 

 

 

[ddrudik]

If that's how your string is going to always look like, you could still just use explode and then glue elements 3 and 4 back together...

 

I like that idea better, no regex required.  If the same number of parts exist as in your string example:

<pre>
<?php
$str='EM-SA0048-SIG_CODE-AA-ISTE-0033';
$arr=explode('-',$str);
$arr[3]=$arr[3].'-'.$arr[4];
$arr[4]=array_pop($arr);
echo print_r($arr,true);
?>

 

If the number of parts may vary different code will be required.

 

[corbin]

Just change {4} to + if you want it to be 1 or more instead of 4.