[SOLVED] preg_replace

mwhym · April 3, 2008

Hello,

I am using preg_replace to change the content retrieved from a file, but I would like to incrementally mark the change of each occurence.

For instance :

have the text :

in a file retrieved with fread in a variable called $sul

and use :

$sul = preg_replace('#<td class=\"(.*?)\" align=(.*?)>#',' JAZZ ', $sul);

This will return :

JAZZ 01/04/2008</td>

JAZZ 6,70</td>

JAZZ 5,02</td>

JAZZ 2.430</td>

JAZZ 6,72</td>

JAZZ 6,48</td>

JAZZ 15.942,22</td>

JAZZ 20</td>

JAZZ 6,48</td>

Now what i would like to achieve (if possible) is to have each replacement incrementally marked during the preg_replace, so as to arrive to something like :

JAZZ1 01/04/2008</td>

JAZZ2 6,70</td>

JAZZ3 5,02</td>

JAZZ4 2.430</td>

JAZZ5 6,72</td>

JAZZ6 6,48</td>

JAZZ7 15.942,22</td>

JAZZ8 20</td>

JAZZ9 6,48</td>

Is this possible ? I am not even sure I am explaining this properly I hope my question is getting through.

I tried to use something like the following to see if i could do an incremental change :

do

{

$i++;

$sul=preg_replace("/BRUS/", $i,$sul);

}

while ($i<10);

But it returns it without incrementing.

1 01/04/2008</td>

1 6,70</td>

1 5,02</td>

1 2.430</td>

1 6,72</td>

1 6,48</td>

1 15.942,22</td>

1 20</td>

1 6,48</td>

If anyone could help me out with this I would greatly appreciate it

Thanks

George

MadTechie · April 3, 2008

what about something like

<?php
do
{
$i++;
    $sul=preg_replace('<td class=\"(?:.*?)\" align=(?:.*?)>', "JAZZ".$i,$sul, 1);
}while ($i<10);

?>

EDIT: updated RegEx

MiCR0 · April 3, 2008

Or you could just use explode on the </td> and then echo them out from the array.

MadTechie · April 3, 2008

but then your need to remove the class align etc .. seams longer to me!

mwhym · April 3, 2008

Thanks for the input much appreciated.

I tried it out but it confused me a bit.

As you pasted it - it replaces the first occurence only and returns it like :

JAZZ10 01/04/2008</td>

--------------------------------------------------

I tried to differentiate it a bit :

<?php
do
{
$i++;
    $sul=preg_replace('#<td class=\"(?:.*?)\" align=(?:.*?)>#', "JAZZ".$i,$sul, 10);
}while ($i<10);

?>

This almost worked changed the first instance to JAZZ1 - then the next 10 to JAZZ2 - then the next 10 to JAZZ3

LIKE :

JAZZ1 01/04/2008</td>

JAZZ2 6,70</td>

JAZZ2 5,02</td>

JAZZ2 2.430</td>

JAZZ2 6,72</td>

JAZZ2 6,48</td>

JAZZ2 15.942,22</td>

JAZZ2 20</td>

JAZZ2 6,48</td>

JAZZ2 01/04/2008</td>

JAZZ2 6,70</td>

JAZZ3 5,02</td>

JAZZ3 2.430</td>

JAZZ3 6,72</td>

JAZZ3 6,48</td>

JAZZ3 15.942,22</td>

JAZZ3 20</td>

JAZZ3 6,48</td>

Its a step forward though thanks will keep wrestling with it

MadTechie · April 3, 2008

try this

<?php
do
{
$i++;
    $sul=preg_replace('#<td class=\"(?:.*?)\" align=(?:.*?)>#', "JAZZ".$i,$sul, 1);
}while ($i<10);

?>

mwhym · April 3, 2008

Still with this last bit of code it only replaces the first instance with JAZZ10 and then ignores the rest.

Thanks alot.

George

laffin · April 3, 2008

use preg_replace_callback

<?php

$counter=0;
function UpdCounter($matches)
{
  global $counter;
  return "JAZZ" .++$counter. $matches[1];
}

$sul=preg_replace_callback('#<td class=\"(.*?)\" align=(.*?)>#',' JAZZ ', $sul)

?>

laffin · April 3, 2008

oops in my haste messed up the conversion to using preg_replace_callback it shud be

$sul=preg_replace_callback('#<td class=\"(.*?)\" align=(.*?)>#',' UpdCounter', $sul)

mwhym · April 3, 2008

Ahhh thanks so much

This last bit worked like a charm (only prob was the single quotes around the function in the preg_replace)

just updated it to :

$sul=preg_replace_callback('#<td class=\"(.*?)\" align=(.*?)>#',UpdCounter, $sul)

One things (more of a curiosity as it doesnt really matter for my purposes) why does it start the count at 10 ?

Starts at JAZZ10 and then increments by one normally - but cant figure out why it starts at 10 and not 1.

Thanks a million for the help everyone much appreciated.

George

MadTechie · April 3, 2008

<?php
$sul = 'JAZZ10 01/04/2008</td>
<td class="bodyText" align="center">6,70</td>
<td class="bodyText" align="right">5,02</td>               
<td class="bodyText" align="right">2.430</td>
<td class="bodyText" align="center">6,72</td>
<td class="bodyText" align="center">6,48</td>
<td class="bodyText" align="right">15.942,22</td>
<td class="bodyText" align="right">20</td>
<td class="bodyText" align="center">6,48</td>';
$i=0;
do
{
$i++;
    $sul=preg_replace('#<td class=\"(?:.*?)\" align=(?:.*?)>#', "JAZZ".$i." - ",$sul, 1);
}while ($i<10);

echo $sul;
?>

returns

JAZZ10 01/04/2008</td>
JAZZ1 - 6,70</td>

JAZZ2 - 5,02</td>

JAZZ3 - 2.430</td>

JAZZ4 - 6,72</td>

JAZZ5 - 6,48</td>

JAZZ6 - 15.942,22</td>

JAZZ7 - 20</td>

JAZZ8 - 6,48</td>

I guess i don't know what your asking for coz that looks correct to me!

mwhym · April 3, 2008

Sigh ... you are right... i am being stupid

Sorry for the confusion the error was due to how I was outputing the result.

It does work properly...

Sorry again and thanks alot for the help.

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[SOLVED] preg_replace

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