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The script I am trying to run via shell_exec in PHP requires an environmental variable to be set, which afaik is done via:
export VARIABLE=value
However, to run the script I am forced to do:
<?PHP
$sOutput = shell_exec("export VARIABLE=value && my_command_goeth_hereth");
It seams kinda pointless to have to export the variable every time I run any commands.
Is this the only way to do it, or am I missing a much simpler way?
700
The shell_exec() function is an inbuilt function in PHP which is used to execute the commands via shell and return the complete output as a string. The shell_exec is an alias for the backtick operator, for those used to *nix. If the command fails return NULL and the values are not reliable for error checking.
Some of the scripts that the queue runner script executes may take 30 seconds or so to finish running (generating PDFs, resizing images, etc). The problem is that shell_exec() in the queue runner script calls the processing scripts, but then doesn't wait for them to finish, resulting in the queue not being completed.
Introduction. $_ENV is another superglobal associative array in PHP. It stores environment variables available to current script. $HTTP_ENV_VARS also contains the same information, but is not a superglobal, and now been deprecated. Environment variables are imported into global namespace.
Since environment variables are inherited, setting them inside your script will set them for the commands it launches too. You just have to use putenv.
putenv("VARIABLE=value");
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