Change to preg_replace instead of ereg_replace

[maildeab]

Hi!
I get the message that ereg_replace() is deprecated.

1. this is the example code (i used this code to learn how to use preg_replace)

   <?php
   $string = "Subtitle of first. <!-- [-list_ini-] -->Paragraph<!-- [-list_fin-] -->. The second paragraph";
   echo "Original Text: <br />".$string."<br />------------<br />";
   
   $output1 = ereg_replace(".*<!-- \[-list_ini-\] -->(.*)<!-- \[-list_fin-\] -->.*","\\1",$string);
   echo "Using ereg_replace: <br />".$output1."<br />-------------<br />";
   
   $output2 = preg_replace("#.*(<!-- \[-list_ini-\] -->)(.*)(<!-- \[-list_fin-\] -->).*#e","'$2'",$string);
   echo "Using preg_replace: <br />".$output2."<br />";
   
   //old funcion shows: 'Paragraph', it means: '$2', and preg_replace too...
   ?>

   2. So, I want to change the following code, to use preg_replace... but didn't work!
      In this case, i don't know why the función don't return only $2;
      Returns: text before ($1), text that i need [the row] ($2), and the text after($3)

   <?php
   $string = '
   <table align="center" width="775" id="tabla_gral">
   <tr class="fila_titular"> 
     <th width="50">Id</th>
     <th width="150">Nombre</th>
   </tr>
   
   <!-- [-listado_ini-] --> 
   <tr class="fila_contenido [-fila-]"> 
     <td width="50" class="centro"[-editando_auxiliar-]>[-id-]</td>
     <td width="150">[-nombre-]</td>
   </tr>
   <!-- [-listado_fin-] -->
   
   </table>';
   echo "Original Text: <br />".$string."<br />------------<br />";
   //--------------------------------------------------------
   $listado1 = ereg_replace(".*<!-- \[-listado_ini-\] -->(.*)<!-- \[-listado_fin-\] -->.*","\\1",$string); // ereg_replace deprecated
   echo "Using ereg_replace: <br />".$listado1."<br />-------------<br />";
   
   $listado2 = preg_replace("#.*(<!-- \[-listado_ini-\] -->)(.*)(<!-- \[-listado_fin-\] -->).*#e","$2",$string);
   echo "Using preg_replace: <br />".$listado2."<br />-------------<br />";
   
   /* i want that $listado has "only" the row:
   <tr class="fila_contenido [-fila-]"> 
     <td width="50" class="centro"[-editando_auxiliar-]>[-id-]</td>
     <td width="150">[-nombre-]</td>
   </tr>
   */
   ?>

   if somebody help me... i will be happy!!
   thanks for advance!!
   Andrea

[halojoy]

I got it working.

This is pattern. I think you understand:

"#(.*)<!-- \[-listado_ini-\] -->(.*)<!-- \[-listado_fin-\] -->(.*)#s"

There are 3 catch: (.*) .... this is what you want.

Important: #s" at the end
We need this 's' if we have newlines in the $string (\n)
But not if you only have a string like this:
"this is some text with not any newlines"

"this is some text with one
newline"
Here is my test. It works.

<?php
$string = '
<table align="center" width="775" id="tabla_gral">
<tr class="fila_titular">
<th width="50">Id</th>
<th width="150">Nombre</th>
</tr>

<!-- [-listado_ini-] -->
<tr class="fila_contenido [-fila-]">
<td width="50" class="centro"[-editando_auxiliar-]>[-id-]</td>
<td width="150">[-nombre-]</td>
</tr>
<!-- [-listado_fin-] -->

</table>';

echo nl2br(htmlspecialchars($string))."<br /><br />";

$pattern = "#(.*)<!-- \[-listado_ini-\] -->(.*)<!-- \[-listado_fin-\] -->(.*)#s";
$listado2 = preg_replace($pattern, "$1$2$3", $string);

echo "Using preg_replace: <br />".nl2br(htmlspecialchars($listado2));

?>

[maildeab]

Halojoy! Thank you very very much!!!

there was the #s insted #e!!

i'm starting with this regular expressions and i understand very basic language...
thank you for your time!!
kisses!! andrea
ps: i chaged a lot of times the syntaxis before post it, and i had forgotten to remove the brackets (1 and 3), but this part i had understood good! thanks again!