Why Are These Functions Causing MASSIVE Memory Problems? Please Help!

Posted on 16th Feb 2014 07:03 pm by admin

Hi,

I have a script with some options.

I use regex to replace patterns in strings, but I seem to be using them incorrectly, because they very quickly break my max_memory_limit (by several orders of magnitude)

This is strange, because I'm dealing with maybe 10 simultaneous strings of 500 words max.

I'm clearly causing some kind of overly recursive syntax, but I can't see how...

Any help you could give me to programme this better (or tell me where I'm going wrong) would be most appreciated

Code: [Select]

$string = "this would be about 500 words long";
$parts = $string; // $parts would normally be a substring of $string;

wp_wordmash($parts);
wp_synonymize($string);
wp_keyword2url($string);

//html stuff follows here...


function wp_wordmash($parts) {

$wordlist = file_get_contents('dictionary.txt', true);
$dictionary = explode(",", $wordlist);
$htmldictionary = array();
foreach($dictionary as $dicword) {
$htmldictionary[] = wp_htmlcode($dicword);
$htmldictionary_u[] = wp_htmlcode(strtoupper($dicword));
$htmldictionary_u1[] = wp_htmlcode(ucfirst($dicword));
$htmldictionary_ucwords[] = wp_htmlcode(ucwords($dicword));
}
for($i=0;$i<count($dictionary);$i++){

$parts = preg_replace("/b$dictionary[$i]b/", $htmldictionary[$i], $parts);
$parts = preg_replace("/b" . strtoupper($dictionary[$i]) . "b/", $htmldictionary_u[$i], $parts);
$parts = preg_replace("/b" . ucfirst($dictionary[$i]) . "b/", $htmldictionary_u1[$i], $parts);
$parts = preg_replace("/b" . ucwords($dictionary[$i]) . "b/", $htmldictionary_ucwords[$i], $parts);
}
return $parts;
}

function wp_htmlcode($string) {

$buffer= NULL;
for($i=0;$i<strlen($string);$i++) {
$buffer .= "&#" . ord($string{$i}) . ";";
}
return $buffer;
}

function wp_synonymize($string){

$buffer=$string;
$synonymfile = file_get_contents('synonyms.txt', true);
$synonyms = explode("n", $synonymfile);
for($i=0;$i<count($synonyms);$i++){
$synonymlist = explode(",", $synonyms[$i]);
$oldword = $synonymlist[0];
$synonym = $synonymlist[1];
$synonym = str_replace("r", '', $synonym);
$buffer = preg_replace("/b$oldwordb/", $synonym, $buffer);
$buffer = preg_replace("/b" . strtoupper($oldword) . "b/", strtoupper($synonym), $buffer);
$buffer = preg_replace("/b" . ucfirst($oldword) . "b/", ucfirst($synonym), $buffer);
$buffer = preg_replace("/b" . ucwords($oldword) . "b/", ucwords($synonym), $buffer);
}
return $buffer;
}

function wp_keyword2url($string){

$buffer=$string;
$keyword2urlfile = file_get_contents('keyword2url.txt', true);
$keywords = explode("n", $keyword2urlfile);
for($i=0;$i<count($keywords);$i++){
$keywordlist = explode(",", $keywords[$i]);
$keyword = $keywordlist[0];
$url = $keywordlist[1];
$url = str_replace("r", '', $url);
$buffer = preg_replace("/b$keywordb/", '<a href = "' . $url . '">' . $keyword . '</a>', $buffer);
$buffer = preg_replace("/b" . strtoupper($keyword) . "b/", '<a href = "' . $url . '">' . strtoupper($keyword) . '</a>', $buffer);
$buffer = preg_replace("/b" . ucfirst($keyword) . "b/", '<a href = "' . $url . '">' . ucfirst($keyword) . '</a>', $buffer);
$buffer = preg_replace("/b" . ucwords($keyword) . "b/", '<a href = "' . $url . '">' . ucwords($keyword) . '</a>', $buffer);
}
return $buffer;
}
As I say, the string passed to these functions is typically < 500 words.

I've also included the comparison files (dictionary.txt, synonyms.txt and keyword2URL.txt)...HERE


I hope you can help...I'm 99% certain I'm using preg_replace() wrong...because if I substitute it with str_replace() then my memory issues disappear.

Problem is, I like preg_replace because it gives me the word border functionality.

I'm just obviously doing it wrong!

Any thoughts?

Your Answer:

Login to answer

Other forums

Date/Time and Checkbox
Hi Everyone,

I am trying to figure out how to insert the current date and tim

Simple image grab script.
I was wondering if it was possible and if anyone knew how to make a simple php script that looks at

Apple's revamped lineup arrives

I'm personally curious about the magic mouse.. a multi-touch concept sounds like it could be nea

IP question
ive got 2 ip addresses both global from same user how would i detect if they are local to each other

quotes changing
hi all

in my content

opening quotes " changes to “

close qu

My query is being run with no results.
I have this.

Code: function DropUser($duser_id, $user_email, $user_username) {

How to read posted binary data from a mobile device and post it to a web server?
Here is the senario...

I have a mobile device (MD) that posts binary data to a Web Server (WS

image upload, resize THEN submit form
Ok so I have a form that requires the user to upload an image, and then do something with that image

Need help: how to catch acess of undefined class properties
Hello. I am learning OO with PHP and have hit a problem.
Some code runs as perfectly valid code,

Pls help with PHP
Pls can anyone direct me on how to create a user account for a customer. For example i want know if