not working `exec` & `system`

[glassmonkey]

It hangs in code which has exec or system

$output=null;
$retval=null;
exec('whoami', $output, $retval);
echo("Returned with status {$retval} and output:\n");
echo("1");
print_r($output);

[glassmonkey]

popen() is unsupported in the browser...

On careful consideration, there is no reason to allow external command execution in WebAssembly, so we will uniformly disable the external command execution system.

and exceptions output to the console should also be displayed on the screen.

[zonuexe]

It seems easy to add system, exec and passthru to disable_functions.

php-playground/src/wasm/build-assets/php_wasm.c

Line 203 in 4aec497

"disable_functions = proc_open,popen,curl_exec,curl_multi_exec\n"