regular expressions are hard :( please help

[craqgerbil]

I have a specific point in a string I want a page break, I need some help with the regexp for it

the string where I want to insert a break is this

....ending of paragraph. Some Text: More text.....

What would be the proper regexp to put a break before Some Text?

From what I know of them I got [ ].+: which I know is wrong cause it takes out everything after the first word in the paragraph to the colon

and searching for Some Text isn't an option cause it is different on each entry, though im fairly sure there is 2 words in front of the colon in each

[crmalibu]

You being familiar with the text samples, what do you think about searching for the period, followed by between 5-20 of any character, followed by colon? Do you think that might be more reliable than searching for two words, and considering stuff like punctuation?

[craqgerbil]

You are right that would make more sense.

So... I want to insert a <br /> after the period(.) that comes before the colon: in the string, with any number in between.

something like
\\.[ ]+:

perhaps?

Is what is in between the brackets that gets replaced?
I am still a little confused with how this works

[crmalibu]

echo preg_replace('#\.([^:]{5,20}:)#', '.<br>$1', $text, 1); 

The $1 will be expanded to contain the text matched by the part of the regex in the parenthesis.

[^:]{5,20} means between 5 and 20 of any character except colon.

[craqgerbil]

Awesome

It works,Thanks