note 58304 added to function.exec
| From: | jkxx at mail dot bg | Date: | Mon, 31 Oct 2005 07:31:30 +0000 |
| Subject: | note 58304 added to function.exec | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-97858@lists.php.net to get a copy of this message | ||
In response to mbirth@webwriters.de's post:
"I now switched over to using exec('start /b ...') directly with the desired command
(instead of writing it into a batch file and calling that) and played around with the line-length.
Seems like the exec() command works with command-strings of up to 4096 characters in length. If the
string is longer, it won't be executed."
I have had this issue ever since I started writing CGIs in Windows 2000 (NT 5.0 then). The
"stdout" stream is subdivided into 4Kbyte chunks. As a result, when data is sent out by
the CGI, there will be issues when that data goes over the 4K boundary. In my case I just appended
enough whitespace to round the output to the nearest multiple of 4096 and all output made it to the
destination. Not sure if this would be a practical solution for everyone, though.
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Manual Page -- http://www.php.net/manual/en/function.exec.php
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