Cronjobs and preg_match - don't work together

notset

Hello,

My script downloads and checks content of file, but i have a problem.

Everything works fine if i run the script by myselft (go to the page via browser). However, i need that it would be done by cronjobs and then something doesn't work. Script stops (just returns FALSE) at preg_match function even subject is the same as always.

Here is the error message which i get to email:

/bin/sh: line 1: 9023 Segmentation fault /usr/bin/php -f /home/user/public_html/folder/script.php >/dev/null

My script:

<?php

function GetData($url)
{
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  $output = curl_exec($ch);
  curl_close($ch);
  return $output;
}

// Everything is ok here
$output = GetData('http://www.site.com/content.php');

// $data returns always FALSE when running by cronjobs 
$data = (preg_match('/<tbody>(.*?)<\/tbody>/ims', $output, $data)) ? $data[1] : FALSE;

?>

I can't understand where is the problem. Do you have any ideas?

NogDog

My guess is that $output is empty, but that's only a guess. As to why, I have no particular idea without some sort of debug info. You might want to set up an error log file for it:

<?php
// set up debug logging:
ini_set('error_log', '/path/to/writable/file');
ini_set('log_errors', 1);
error_reporting(E_ALL);

function GetData($url)
{
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  $output = curl_exec($ch);
  curl_close($ch);
  return $output;
}

// Everything is ok here
$output = GetData('http://www.site.com/content.php');
if($output === false)
{
   error_log("cURL returned false");
}
elseif(empty($output))
{
   error_log("Empty value returned by cURL");
}

// $data returns always FALSE when running by cronjobs
$data = (preg_match('/<tbody>(.*?)<\/tbody>/ims', $output, $data)) ? $data[1] : FALSE;
if($data == false)
{
   error_log("FALSE result. Data:\n$output");
}
?>

notset

No, output was written to error file. So, everything is the same as i described. I even created test.php to run that preg_match function on the error file and the script returned correct data.