Parsing strings on certain conditions and replacing with actions

webpoet

I´m a total clueless newbie when it comes to parsing in PHP so any help is greatly appreciated.

What I would like to do is the following:

Say I have a string that looks like this:

$string = "Hello and welcome to my teststring! [showlogo] I hope you will enjoy your stay here. [anotheraction]"

This string could ofcourse look in many ways but all strings will contain one or several words in [ ] or someother char to mark them. I´m trying to make some code that will go thru this string and replace everything withinit with results from different types of functions, for instance [showlogo] would call the showlogo() function which would return an image code.

Then lastly I want to echo the string with the edits, or echo each part before or after the [ ] action with the actions results in between.

So for instance my example string would send the following to a visitors browser:

Hello and welcome to my teststring! <URL-TO-LOGO> I hope you will enjoy your stay here. <RESULT-FROM-ANOTHER-ACTION>

Any ideas on how to do this ?

Thanks in advance,
Joel

Mega

$var = logo();

echo "hi this is a logo $var";

$string = 'hmm said <%stuff%>';

echo str_replace('<%stuff%>', stuff(), $string);

there a tons of ways of making templates. using a class is my prefered way, but its up to you.

webpoet

Thanx for the reply!

The string replace example is sort of what I´m after but there´s two problems:

when calling the stuff function that´s result is placed at the very start of the string, not in the middle of it like I want it to be.
Altho that basicly accomplishes what I want to do it would mean I´d have to run a separate string replace for each function I have. If theres a way I would rather isolate all text that´s in between <% and %> and then determine what action is to be called.

Any ideas ?

Mega

Originally posted by webpoet
Thanx for the reply!

The string replace example is sort of what I´m after but there´s two problems:

when calling the stuff function that´s result is placed at the very start of the string, not in the middle of it like I want it to be.

Altho that basicly accomplishes what I want to do it would mean I´d have to run a separate string replace for each function I have. If theres a way I would rather isolate all text that´s in between <% and %> and then determine what action is to be called.

Any ideas ? [/B]

you can use $string = instead of echo and echo it later on if u plz

ive tried using preg_replace and i cant figure out how to use a function from a result

Mega

can ne1 explain why this "works":

function blah($var){
	return 'this is a ton of text o_0' . $var;
}

function boo($var){

return "------stuff---------";
}

$string = "<%boo%>";

echo preg_replace('#<%(.*)%>#U', blah('\\1'), $string);

but this doesnt:

function boo($var){

return "------stuff---------";
}

function blah($var){
	return 'this is a ton of text o_0' . $var();
}



$string = "<%boo%>";

echo preg_replace('#<%(.*)%>#U', blah('\\1'), $string);

how weird is that o_0

webpoet

Yes, but that doesn´t solve the problem with it adding the function result to the start ?

edit: didn´t see your second reply, the above adressing that of course 🙂