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run code in 300+ PHP versions simultaneously
<html> <body> <?php if ( $_REQUEST[boton1] !=""){ $numero=$_POST; echo "Calcular factorial del numero $numero:<br><br>"; echo "<b>$numero!</b>="; $ac=1; $n=$numero; while($n>=2) { echo "$n"; echo "x"; $ac=$n*$ac; $n--; } if($n==1) { echo "$n"; $ac=$n*$ac; } echo "="; echo "<b>$ac</b>\n"; echo "<br></br>"; } else { ?> <H1>Ingrese el Numero a Calcular el Factorial</H1> <Hr> <FORM ACTION="main.php" METHOD="POST"> Numero: <INPUT TYPE="TEXT" NAME="number" size="10"> <Br> <INPUT TYPE="SUBMIT" NAME="boton1" VALUE="Ingresar"> </FORM> <?php } ?> <body> </html>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<html> <body> Fatal error: Uncaught Error: Undefined constant "boton1" in /in/WZiGC:4 Stack trace: #0 {main} thrown in /in/WZiGC on line 4
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
<html> <body> Warning: Use of undefined constant boton1 - assumed 'boton1' (this will throw an Error in a future version of PHP) in /in/WZiGC on line 4 Notice: Undefined index: boton1 in /in/WZiGC on line 4 <H1>Ingrese el Numero a Calcular el Factorial</H1> <Hr> <FORM ACTION="main.php" METHOD="POST"> Numero: <INPUT TYPE="TEXT" NAME="number" size="10"> <Br> <INPUT TYPE="SUBMIT" NAME="boton1" VALUE="Ingresar"> </FORM> <body> </html>
Output for 7.3.32 - 7.3.33
<html> <body> Warning: Use of undefined constant boton1 - assumed 'boton1' (this will throw an Error in a future version of PHP) in /in/WZiGC on line 4 <H1>Ingrese el Numero a Calcular el Factorial</H1> <Hr> <FORM ACTION="main.php" METHOD="POST"> Numero: <INPUT TYPE="TEXT" NAME="number" size="10"> <Br> <INPUT TYPE="SUBMIT" NAME="boton1" VALUE="Ingresar"> </FORM> <body> </html>
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33
<html> <body> Notice: Use of undefined constant boton1 - assumed 'boton1' in /in/WZiGC on line 4 Notice: Undefined index: boton1 in /in/WZiGC on line 4 <H1>Ingrese el Numero a Calcular el Factorial</H1> <Hr> <FORM ACTION="main.php" METHOD="POST"> Numero: <INPUT TYPE="TEXT" NAME="number" size="10"> <Br> <INPUT TYPE="SUBMIT" NAME="boton1" VALUE="Ingresar"> </FORM> <body> </html>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
<html> <body> Notice: Use of undefined constant boton1 - assumed 'boton1' in /in/WZiGC on line 4 Notice: Undefined index: boton1 in /in/WZiGC on line 4 <H1>Ingrese el Numero a Calcular el Factorial</H1> <Hr> <FORM ACTION="main.php" METHOD="POST"> Numero: <INPUT TYPE="TEXT" NAME="number" size="10"> <Br> <INPUT TYPE="SUBMIT" NAME="boton1" VALUE="Ingresar"> </FORM> <body> </html>

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