beginner question on multidimensional arrays

[matthewburton@gmail.com]

Hi everyone,

I'm trying to write a program that will search a body of text and
replace certain words (say, A, B, and C) with different words that I
think are more appropriate (A1, B1 and C1). I have a feeling that I
need to do this through a multidimensiona l array. Am I on the right
track?

thanks,
matt

[Chung Leong]

Re: beginner question on multidimensiona l arrays


matthewburton@g mail.com wrote:[color=blue]
> Hi everyone,
>
> I'm trying to write a program that will search a body of text and
> replace certain words (say, A, B, and C) with different words that I
> think are more appropriate (A1, B1 and C1). I have a feeling that I
> need to do this through a multidimensiona l array. Am I on the right
> track?
>
> thanks,
> matt[/color]

I don't really see a need for multidimensiona l arrays here. A single
associative array would serve perfectly well. For example, the
following is the simplest way to do what you described:

$table = array("A" => "A1", "B" => "B1", "C" => "C1");
$text = strtr($text, $table);

For something requiring more sophisticated handling, you might want to
use preg_replace(), passing twos arrays as parameters.

[crucialmoment]

Re: beginner question on multidimensiona l arrays

Here's an example using preg_replace

$pattern[0] = '/\/';
$pattern[1] = '/\}/';
$pattern[2] = '/\$/';
$pattern[3] = "/\%/";
$replacement[0] = '{';
$replacement[1] = '}';
$replacement[2] = '$';
$replacement[3] = '%';
$myvar = preg_replace($p attern, $replacement, $myvar);

$pattern is the array of text or characters to search for.
$replacement is what to replace with
In this example, some characters are replaced with their html escape
codes

[f3l_]

Re: beginner question on multidimensiona l arrays

$txt=str_replac e(array('fuck', 'this','shit'), array('f***','t his','s***'),$t xt);