how to run c program using php exec()
i have seen many results from google search
it is possible by exec() function
but i am unable to use it
i tried in this way
i wrote a program in c
**myc.c**
#include <stdio.h>
int main(int argc, char *argv[])
{
printf("Hello, world\n");
return 0;
}
**test.php**
<?php
exec('myc.c');
?>
can any one help me pls in this regard i executed this through wamp server by placing in www folder
If you want to run a program written in C then you have to run the program and not the source code.
Compile your C into an executable, then call the name of the executable from exec.
C Program
#include <stdio.h>
int main(int argc, char **argv)
{
if(argv[1])
printf("First arg %d\n", argv[1]);
if(argv[2])
printf("Second arg %d", argv[2]);
return 0;
}
PHP Code
<?php
exec("testone.exe 125 70", $out);
print_r($out);
?>
Combined Output:
<!-- Array ( [0] => First arg 27 [1] => Second arg 27 ) -->
Today's PHP ecosystem provides a couple better solutions for this now.
You can use Zephir to easily build PHP extensions in a PHP-like language. They provide a mechanism called custom optimizers that cleanly binds arbitrary C libraries or custom C code to your extension.
While it requires a little more work, it could (YMMV) result in near-C performance via native PHP calls, and upgrades your PHP-fu. You also might accidentally fall in love with Phalcon.
In my personal experience, pure Zephir actually harmed the performance of pure PHP for my task, so I would recommend it only if you want to leverage the power of existing C libs, or you have heavy workloads.
This Github comment provides a brief overview of why you should use the Zephir optimizer over an inline CBLOCK and how to structure your directories/files.
As of PHP 7.4, the Foreign Function Interface comes built-in. You can also install it as an extension for older versions of PHP.
The upside? You don't have to write your own PHP extension to use C code. The downside? Right now FFI performance doesn't really compare to actual C code. You can think of it more like a crutch than a batmobile.
If you care about high performance, try option 1.
You should compile your C program and then execute it with PHP. PHP will not run your C code, even though they have similar syntaxes.
The PHP exec function will execute a command similar to how it is done in a shell or command prompt.
exec gcc -o myc myc.c and then exec ./myc but then you will be at serious risk of ending up on the daily wtf :P