Replace Text

[The Little Guy]

How can I take this:

[ex=1]abs1 = abs(-4.2); // abs = 4.2; (double/float)[/ex]
[ex=2]abs2 = abs(5);   // abs2 = 5; (integer)[/ex]
[ex=3]abs3 = abs(-5);  // abs3 = 5; (integer)[/ex]

 

and format it so it looks like this:

<span class="exampleNumber">Example: 1</span><span class="example">abs1 = abs(-4.2); // abs = 4.2; (double/float)</span>
<span class="exampleNumber">Example: 2</span><span class="example">abs2 = abs(5);   // abs2 = 5; (integer)</span>
<span class="exampleNumber">Example: 3</span><span class="example">abs3 = abs(-5);  // abs3 = 5; (integer)</span>

 

[Orio]

<?php

$str = <<<DATA
[ex=1]abs1 = abs(-4.2); // abs = 4.2; (double/float)[/ex]
[ex=2]abs2 = abs(5);   // abs2 = 5; (integer)[/ex]
[ex=3]abs3 = abs(-5);  // abs3 = 5; (integer)[/ex]
DATA;

$pattern = "/\[ex=([0-9]+)\](.*?)\[\/ex\]/";
$replacement = "<span class=\"exampleNumber\">Example: $1</span><span class=\"example\">$2</span>";
echo preg_replace($pattern, $replacement, $str);

?>

 

Orio.

[The Little Guy]

PERFECT!!!

 

I thought that is basically what I had... why didn't my version work?

 

This is what I had:

$pattern = "~\[ex=(.*)\](.*?)\[\/ex\]~";

[effigy]

That works, but it's not ideal. The use of . with a greedy quantifier creates a lot of backtracking. Orio's pattern works well by being more specific and applying laziness where necessary.

[The Little Guy]

Why doesn't this format?

 

[ex=1]myFile = background_add("C:\Game_Maker7\example\images\GWarArrows_10.png", true,true,false))) 
fileString = string(myFile)
show_message(fileString) // Returns interger[/ex]

 

when I run it though this function:

<?php
bbcode($string){
     return preg_replace('~\[ex=([0-9]+)\](.*?)\[\/ex\]~','<span class="exampleNumber">Example: $1</span><span class="example">$2</span>'$string);
}
?>

 

this is the output I get:

[ex=1]myFile = background_add("C:\Game_Maker7\example\images\GWarArrows_10.png", true,true,false)))

fileString = string(myFile)

show_message(fileString) // Returns interger[/ex]

 

Here is the page (Examples section):

http://gmm.phpsnips.com/functions.php?function=background_add

 

Here is what I would like it to look like (Examples section):

http://gmm.phpsnips.com/functions.php?function=arctan2

 

it works on the second one why not this one?

[Orio]

Oh, in the examples you gave each [ex][/ex] was in a single line. So you need to add the "s" modifier:

 

<?php

$str = <<<DATA
[ex=1]abs1 = abs(-4.2);
Another line // abs = 4.2; (double/float)[/ex]
[ex=2]abs2 = abs(5);   // abs2 = 5; (integer)[/ex]
[ex=3]abs3 = abs(-5);  // abs3 = 5; (integer)[/ex]
DATA;

$pattern = "/\[ex=([0-9]+)\](.*?)\[\/ex\]/s";
$replacement = "<span class=\"exampleNumber\">Example: $1</span><span class=\"example\">$2</span>";
echo preg_replace($pattern, $replacement, $str);

?>

 

Orio.