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POUsing proc_open() to run C executable in PHP
 

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    <p>I am sorry (again) if you find this question noob. But I am really having a problem on <strong>proc_open</strong>.</p> <p>I have a <strong>C file</strong> and I want to run it using <code>proc_open()</code> and read the input from a textfile. I was able to fetch and feed the input to the executable. The problem is that I just hardcoded the <code>array of fetched strings</code>. </p> <p><strong>PHP code fragments:</strong></p> <pre><code> $descriptorspec = array( 0 =&gt; array("pipe", "r"), 1 =&gt; array("pipe", "w"), 2 =&gt; array("file", "error.log", "a") ); $process = proc_open('C:/xampp/htdocs/ci_user/add2', $descriptorspec, $pipes); sleep(1); if (is_resource($process)) { //Read input.txt by line and store it in an array $input = file('C:/xampp/htdocs/ci_user/input.txt'); //Feed the input (hardcoded) fwrite($pipes[0], "$input[0] $input[1]"); fclose($pipes[0]); while ($s = fgets($pipes[1])) { print $s."&lt;/br&gt;"; flush(); } fclose($pipes[1]); } </code></pre> <p><strong>add2.c</strong></p> <pre><code> #include &lt;stdio.h&gt; int main(void) { int first, second; printf("Enter two integers &gt; "); scanf("%d", &amp;first); scanf("%d", &amp;second); printf("The two numbers are: %d %d\n", first, second); printf("Output: %d\n", first+second); } </code></pre> <p><strong>streams on pipes[1] ( the printf's)</strong></p> <pre><code>Enter two integers &gt; The two numbers are: 8 2 Output: 10 </code></pre> <p><strong>Question:</strong> Is there a "<strong>dynamic way</strong>" on how the "<strong>$input</strong>" elements will be laid out as input on</p> <pre><code> fwrite($pipes[0], "$input[0] $input[1]"); </code></pre> <p>Or is there a more convenient way to get inputs from a file and feed it whenever there is <code>scanf</code> in the C executable that was ran by the <code>proc_open()</code>.</p> <p>(Btw, for those having trouble in <code>proc_open()</code>, especially for the starters like myself, I hope my codes help you somehow. This is my first time to make it run after few attempts so my codes are simple.)</p> <p>And for the Pro's, please help meeeee. :( THANK YOU!</p>
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    1. USJoran Den Houting
    1. USuser2800050
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    1. COThanks @joran-den-houting for the edits! :)
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    2. CONo problem glad you got your answer :)
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