[Help]Regular Expression

keval007 · Jun 30, 2012

Hi, PHP Experts

I have text file which has lots of text as well as HTML data. There are some line as shown below.

Code:

06/30/12 00:40:30.73 Sending Email - Group: 4FD7917824F1B-EMAIL, 0, Message:

There are lots of lines like above in text file. I want to extract following data from the entire text file.

Code:

Group: 4FD7917824F1B-EMAIL

I know this can be done by regular expression but I don't know how exactly done it. Some one can please provide some regular expression for above or some explanation.

LongBanana · Jun 30, 2012

I believe this was the way to do it in PHP.

Code:

$myfile = file_get_contents('location of txt file');
$pattern = '%([^,]Group.*)%';
if (preg_match_all($pattern, $myfile, $matches, PREG_SET_ORDER))
{
    foreach ($matches as $match)
    {
         echo $match;
    }
}

That should do the trick. Let me know what comes out of it.

blackhat777 · Jun 30, 2012

Try this one:
Group: [0-9a-zA-Z-]*

It will select only the part you want to select.

Thanks

keval007 · Jul 1, 2012

LongBanana said:
I believe this was the way to do it in PHP.

Code:

$myfile = file_get_contents('location of txt file'); $pattern = '%([^,]Group.*)%'; if (preg_match_all($pattern, $myfile, $matches, PREG_SET_ORDER)) { foreach ($matches as $match) { echo $match; } }

That should do the trick. Let me know what comes out of it.

Your script give output as "Array Array Array". I have done little modification in it and it works.

Code:

$myfile = file_get_contents('EmailLog.txt');
$pattern = "%[^,](Group.*)-EMAIL%";

if (preg_match_all($pattern, $myfile, $matches, PREG_SET_ORDER))
{
    foreach ($matches as $match)
    {
         echo $match[0]."<br>";
    }
}

Output:
[COLOR=#000000][FONT=Times New Roman]Group: 4FD7917824F1B-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FD7917824F1B-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FD7917824F1B-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FE49D61C1446-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FE49F94DE946-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FD3E154C80E3-EMAIL[/FONT][/COLOR]

And the pattern
$pattern = "%Group: [0-9a-zA-Z-]*%";
posted by blackhat777 also works

utuxia · Jul 1, 2012

Code:

GROUP: (.*?),

This assumes you won't have a comma in the target string you want to extract.

LongBanana · Jul 2, 2012

keval007 said:

Your script give output as "Array Array Array". I have done little modification in it and it works.

Code:

$myfile = file_get_contents('EmailLog.txt');
$pattern = "%[^,](Group.*)-EMAIL%";

if (preg_match_all($pattern, $myfile, $matches, PREG_SET_ORDER))
{
    foreach ($matches as $match)
    {
         echo $match[0]."<br>";
    }
}

Output:
[COLOR=#000000][FONT=Times New Roman]Group: 4FD7917824F1B-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FD7917824F1B-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FD7917824F1B-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FE49D61C1446-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FE49F94DE946-EMAIL[/FONT][/COLOR]
[COLOR=#000000][FONT=Times New Roman]Group: 4FD3E154C80E3-EMAIL[/FONT][/COLOR]

Ah right. I forgot that preg_match_all puts them into an array.

[Help]Regular Expression

keval007

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LongBanana

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blackhat777

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keval007

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