CutyCapt with php exec - php

Question

I'am using CutyCapt on my CentOS.
It works fine via terminal but it doesn't work via php exec function.
I've started xvfb by command in terminal:
Xvfb :99 -screen 0 1024x768x24
And I'am trying to do a screenshot by php script:
exec("DISPLAY=:99 /path/to/cutycapt --url=<some url> --out=<path/to/output>");
It doesn't show any errors but there is no output file (output directory has chmod 777)
Can somebody help me?
Thanks
UPD:
Maybe it is better somehow to allow executing of Xvfb by Apache?

Answer 1

I've managed to get CutyCapt to run successfully using the php at the end. The $_parameters are passed via AJAX to the php script. Hope this helps...
case 'Output_Chart': {
// We always create the .png. We use the ImageMagick convert (IMC) command to make .pdfs
if ($_Suffix == 'pdf') {
$IMC = ";convert -page 735x850 '$_PathOut/$_ChartName.png' '$_PathOut/$_ChartName.pdf'";
} else {
$IMC = '';
}
// Prepare the query string for the CutyCapt URL
$sQuery_Pattern = '?Path=%s&iDL=%d';
$sQuery = sprintf($sQuery_Pattern, $_Path, $_iDL);
// Prepare CutyCapt's command and parameters (NB: query string and out parameter are enclosed in aposts for the shell)
$sCC_Cmd = '/var/www/LF/Includes/CutyCapt';
$sCC_URL = "http://localhost/LF/LFPrint.html'$sQuery'"; // Note: Inner apostrophes
$sCC_Out = "'$_PathOut/$_ChartName.png'";
$sCC_Pattern = ' --url=%s --out=%s --delay=%d --min-width=%d';
$sCC_Options = sprintf($sCC_Pattern, $sCC_URL, $sCC_Out, $_Delay, $_MinWidth);
//$sCC_CmdLine = $sCC_Cmd . $sCC_Options . " 2> CutyCapt.err.txt";
$sCC_CmdLine = $sCC_Cmd . $sCC_Options . " 2> /dev/null";
// Prepare the final command line with xvfb-run, CutyCapt, and the URL?QueryString
$sCC_CmdLine = 'xvfb-run --auto-servernum --server-args="-screen 0, 800x1000x24" ' . $sCC_CmdLine . $IMC;
exec( $sCC_CmdLine, $aOutput = array(), $ret);
// Wait for and then return the results. sCC_CmdLine and aOutput are just for debugging
echo json_encode(array("ret" => $ret, "cmd" => $sCC_CmdLine, "Output" => $aOutput));
break;
}