preg help

[Chris92]

Hi, I need to match stuff between curly brackets.

 

So basically I'm trying this:

 

$string = "{PAGE_TITLE} - {PAGE_NAME}";
preg_match( '/{PAGE_(.*)}/', $string, $array );

print_r($array);

 

Which leaves me with this:

Array
(
    [0] => {PAGE_TITLE} - {PAGE_NAME}
    [1] => TITLE} - {PAGE_NAME
)

 

Which is obviously not the result I want.

 

What I want is this:

Array
(
    [0] => {PAGE_TITLE}
    [1] => {PAGE_NAME}
)

 

Any help is appreciated,

 

Chris

[fortnox007]

Just te make it more clear.

You want to match everything between brackets, or do you only want to match stuff between brackets starting with PAGE_

 

 

[Chris92]

I only want to match stuff between brackets starting with PAGE_.

[fortnox007]

Ok ill start puzzeling

 

-edit:  wel this should work, but since you didn't specify what other caracters are allowed i used .* if you want to use a limited range of characters let me know.

 

/({PAGE_(.*)})/

[fortnox007]

Hmm i changed it a bit,

 

'/({PAGE_.*?})/' 

but its not getting the second match yet. Working on it

[fortnox007]

I think we should use preg_match_all to match more instances of a subpattern:

$string = "lalala {PAGE_TITLE} - {PAGE_NAME} lalalsa";
        preg_match_all( '/({PAGE_.*?})/', $string , $array);

        print_r($array);

 

Note though that [0] prints out the shows all the substrings that matched the pattern.

 

[fortnox007]

OK i have another solution that meet your needs more, but it's maybe not the best way of doing it.

 

$stringy = "lalala {PAGE_TITLE} - {PAGE_NAME} lalalsa";
            $array_stringy = explode(" ", $stringy); // put string in an array delimiter is the 'space'
            //print_r ($array_stringy);
            $fl_array = preg_grep("/({PAGE_.*?})/", $array_stringy); // select only the pieces from the array that match your pattern
            $clean_array = array_values($fl_array); // resseting keys of array
            print_r ($fl_array); // unsorted looking array
            echo '<br>'; //break for some order
            print_r($clean_array); //clean aray with new keys starting at 0

 

If anyone knows a better way please let me know. I have a feeling this is inefficient 

[.josh]

$string = "{PAGE_TITLE} - {PAGE_NAME}";
preg_match_all( '~{[^}]+}~', $string, $array);
print_r($array);

 

Array
(
    [0] => Array
        (
            [0] => {PAGE_TITLE}
            [1] => {PAGE_NAME}
        )

)

[fortnox007]

oh that's very smart!

 

Just for my knowledge, if i split it up in parts is this the correct interpretation?

1)  '~{  }~'  // enclose the pattern in { and }

2)  [^}]+  // does this mean it may not contain }  , and that the inside must at least appear 1 or more time ?

[.josh]

~{[^}]+}~


~     starting delimiter
{     match a literal open curly brace
[^}]  negative character class meaning match anything that is not a closing curly brace
+     match one or more of the previous thing, so match one or more of anything that is not a closing curly brace.
}     match a literal closing curly brace
~     ending delimiter 

[fortnox007]

Thanks Crayon, ;-) i am getting a little better everyday at this regexp.

[Chris92]

$string = "{PAGE_TITLE} - {PAGE_NAME}";
preg_match_all( '~{[^}]+}~', $string, $array);
print_r($array);

 

Array
(
    [0] => Array
        (
            [0] => {PAGE_TITLE}
            [1] => {PAGE_NAME}
        )

)

Thanks! And everyone else!