preg_split php function in a php file pattern regexp

Question

Possible Duplicate:
Parse PHP code to extract function names?

I'm working on a script to read my PHP files and get all the functions as a return.

I'm using preg_split() to split my file into an array of functions.

I'm having trouble writing the pattern to get all the functions returned (faced issue when the function's name contains the word 'function'. I'm open to any other solutions / advice.

Expected output:

array (
  0 => 'function write{$oneparam, $two, $three){return $two}',
  1 => 'function read{$oneparam, $two, $tthree){returne $awesome}',
  2 => 'function edit{$oneparam, $two, $three){return $two},
  3 => 'function delete{$oneparam, $two, $three){return $two}',
  4 => 'function lastfunction{$oneparam, $two, $three){return $two}'
)

Using regexes to parse a programming language is a bad idea. — ThiefMaster, Jun 01 '12 at 23:34
You should use `preg_match_all` for that. For more exact results the tokinizer though. Lemme look for duplicates... — mario, Jun 01 '12 at 23:35
this is just for documentation purposes, I want to document all my functions — user1431754, Jun 01 '12 at 23:36
I saw the first one not the second. My bad I'll check it out. — user1431754, Jun 01 '12 at 23:37
Instead of using a regex use the [PHP tokenizer](http://www.php.net/manual/en/function.token-get-all.php). — ThiefMaster, Jun 01 '12 at 23:39
Mario Your answer was right. It was my mistake. preg_match_all works perfectly. I apologize — user1431754, Jun 01 '12 at 23:59

score 1 · Accepted Answer · answered Jun 01 '12 at 23:41

1

You can try something like this to capture just the names / declarations:

#(function\s+\w+\(.*?\)#s

Or this to include the body of the function (assuming they're on a single line like in your example):

#(function\s+\w+\(.*?\)\s*{.*?})#s

It works for all of your test cases, and without any sample input or more details, I can't elaborate further.

answered Jun 01 '12 at 23:41

nickb

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If one wanted to capture the complete function body, the `\{.*?}` part would need a nested capture group; possibly a complete syntax representation (only borderline doable) to understand curly braces in "strings". – mario Jun 01 '12 at 23:44
"Or this to include the body of the function (assuming they're on a single line like in your example):" is the expected output – user1431754 Jun 01 '12 at 23:46
What if they are not on the same line ? (you know regular php) – user1431754 Jun 02 '12 at 00:21

preg_split php function in a php file pattern regexp

1 Answers1