What happens is that I am currently doing a PHP program where I run C programs I give inputs from a text file
and I save your outputs to analyze them, what happens is that I want the output to come out with all the format, including line breaks for example when executing this C program:
#include <stdio.h>
int main(){
int num1,num2,res;
printf("dame un numero ");
scanf("%d",&num1);
printf("dame otro numero ");
scanf("%d",&num2);
res=num1+num2;
printf(" el resultado de la suma es:%d",res);
return 0;
}
in the text file I have the entries that would be:
10
20
including the line break, and I run it with php with the shell exec command:
shell exec(programa<entrada.txt)
but this does not work for me because it gives me the following output:
dame un numero dame otro numero el resultado de la suma es:30
and what I need is for it to come out like this:
dame un numero
dame otro numero
el resultado de la suma es:30
I hope you can help me thank you very much ... I leave my php code that is very simple
note: as you can see before I compile everything
<!doctype html>
<html lang="es">
<head>
<title></title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="stylesheet" type="text/css" href="bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/misestilos.css">
<script src="jquery/3.2.1/jquery.min.js"></script>
<script src="bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<form name="frmEntrada" method="post" action="ejecutar.php">
Codigo:<input type="text" name="txtEntrada">
<input type="submit" class="btn btn-primary" name="btnEntrar" value="Enviar">
</form>
<?php
if (isset($_POST["btnEntrar"])) {
$texto=$_POST["txtEntrada"];
$salida="gcc $texto.c -o $texto";
$respuesta=array();
$estado;
$res=exec($salida,$respuesta,$estado);
if ($estado==1) {
echo "El programa no fue encontrado o error de compilacion";
}
else{
//tomar contenido de salida
$manejador2=fopen("S".$texto.".txt", 'r');
//bloquear archivo
flock($manejador2, 2);
//pasar contenido de archivo a arreglo
$contenido2=fread($manejador2, filesize("S".$texto.".txt"));
fclose($manejador2);
$salida=shell_exec($texto."< E".$texto.".txt");
var_dump($salida);
echo "<div class='row'>";
echo "<div id='cajas' class='col-sm-6'>";
echo "<H1>Salida del Programa</h1><br>";
echo "<p>$salida</p>";
echo "</div>";
echo "<div id='cajas' class='col-sm-6'>";
echo "<H1>Salida esperada</h1><br>";
echo "<p>$contenido2</p>";
echo "</div>";
echo "</div>";
echo "<input type='button' class='btn btn-danger' value='No pasa'' onclick='' />";
echo "<input type='button' class='btn btn-success' value='Pasa'' onclick='' />";
}
}
?>
</body>
</html>