PHP - Php Forking Replacing 'threads' When They End

I have a site that executes a shell script that takes a bit of time to run, the information it outputs does need to be displayed in the page.

My problem is whenever the script is run, it stalls the entire apache process until the script has run. So every time the script gets run, I'm looking at about 30 - 120 seconds of downtime while that happens.

I'd like to fork off the process if possible so that apache can continue to operate, and I think I'm just having issues understanding where I would place and implement the code.

A user fills out a form and hits submit, so should I have the form action submit it to a new page with the forking function to process the shell script/etc? And if so, how do I get it to return the results, because doesn't that then mean that the web page would technically just display the page from the form submission, and not the actual script results?

For clarification, I'm referring to using the pcntl_fork function, and I did look at it on php.net, I think I'm just a little confused still as how to apply it to my scenario. Looks like if the output wasn't necessary it wouldn't be quite so hard.

Hi I am presently writing a code which does the following steps given a site
1) get some keywords (written a function for it)
2) search google for these keywords (I have used curl and getURL functions for these)
3) perform keyword search in the first page of googles results.

Presently I have used curl and curl_multi_getcontent but when i run the code it consumes 100% of my server.
My server will not respond in this case if someone else pings.

I have been trying to do pcntl_fork, but could you let me know how to optimize this code by threading and forking.

I am a newbe in PHP please let me know the structure of how to invoke multiple threads and process the same.
If you have someother suggestions please let me know that too.

I have been searching Google on PHP Threads, I am getting mixed thoughts. Is Multi Threading in PHP Possible? Some say no, some say yes and some say you need to make a workaround.

What is the real answer?

Please help.  I am trying to replace parenthesises () in a string with <>.  I tried preg_replace and str_replace, but was not success.

Here is what I have for str_replace:
$word = "(test)";

$word = str_replace('(', '<', $word);

$word = str_replace(array('(', ')'), array('<','>'), $word);

 

hi freaks,

still working on my email bot.
im currently trying to escape <>-tags to be displayed- but not the browser wont exectute it (i.e. xls-tags) i want them as chars.

so whin my
$content is like <xsl:stylesheet> <xsl:template match="/"> <more xls...> it shows a stylesheet.
i just want the chars.

Here is what ive been trying so far: but its bad

Code: [Select]
<?php

$string='<tag> > < asdasf';

$bomb=array(
'<',
'>',
);
$defusal=array(
'-',
'!',
);
$string= preg_replace($bomb,$defusal,$string);
echo $string;
?>

error:
Warning: preg_replace() [function.preg-replace]: No ending matching delimiter '>' found in C:\xampp1\htdocs\code.php on line 13

donno any further now