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run code in 300+ PHP versions simultaneously
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> <?php // define variables and set to empty values $nameErr = $emailErr = $genderErr = $websiteErr = ""; $name = $email = $gender = $comment = $website = ""; $UPPERCASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; $LOWERCASE = "abcdefghijklmnopqrstuvwxyz"; $NUMBERS = "1234567890"; $SYMBOLS = '`~!@#$%^&*()-_=+[{]}\|;:",<.>/?'; $passwordLength = 0; $availableCharacters = ""; if ($_SERVER["REQUEST_METHOD"] == "POST") { if (empty($_POST["passwordLength"])) { $passwordLengthErr = "Length is required"; } else { $passwordLength = test_input($_POST["passwordLength"]); // check if name only contains letters and whitespace if (!preg_match("/^[a-zA-Z ]*$/",$name)) { $passwordLengthErr = "Only letters and white space allowed"; } } if (empty($_POST["gender"])) { $genderErr = "Gender is required"; } else { $gender = test_input($_POST["gender"]); } if (empty($_POST["email"])) { $emailErr = "Email is required"; } else { $email = test_input($_POST["email"]); // check if e-mail address is well-formed if (!filter_var($email, FILTER_VALIDATE_EMAIL)) { $emailErr = "Invalid email format"; } } if (empty($_POST["website"])) { $website = ""; } else { $website = test_input($_POST["website"]); // check if URL address syntax is valid (this regular expression also allows dashes in the URL) if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%=~_|]/i",$website)) { $websiteErr = "Invalid URL"; } } if (empty($_POST["comment"])) { $comment = ""; } else { $comment = test_input($_POST["comment"]); } if (empty($_POST["gender"])) { $genderErr = "Gender is required"; } else { $gender = test_input($_POST["gender"]); } } function test_input($data) { $data = trim($data); $data = stripslashes($data); $data = htmlspecialchars($data); return $data; } ?> <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"> Password Length: <input type="text" name="name" value="<?php echo $passwordLength;?>"> <span class="error">* <?php echo $passwordLengthErr;?></span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value="<?php echo $includeLetters;?>" checked> E-mail: <input type="text" name="email" value="<?php echo $email;?>"> <span class="error">* <?php echo $emailErr;?></span> <br><br> Website: <input type="text" name="website" value="<?php echo $website;?>"> <span class="error"><?php echo $websiteErr;?></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"><?php echo $comment;?></textarea> <br><br> Gender: <input type="radio" name="gender" <?php if (isset($gender) && $gender=="female") echo "checked";?> value="female">Female <input type="radio" name="gender" <?php if (isset($gender) && $gender=="male") echo "checked";?> value="male">Male <span class="error">* <?php echo $genderErr;?></span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <?php echo "<h2>Your Input:</h2>"; echo $name; echo "<br>"; echo $email; echo "<br>"; echo $website; echo "<br>"; echo $comment; echo "<br>"; echo $gender; ?> </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 - 8.3.4, 8.3.6
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> Warning: Undefined array key "REQUEST_METHOD" in /in/FcqrA on line 24 <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action="/in/FcqrA"> Password Length: <input type="text" name="name" value="0"> <span class="error">* Warning: Undefined variable $passwordLengthErr in /in/FcqrA on line 86 </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value=" Warning: Undefined variable $includeLetters in /in/FcqrA on line 88 " checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 <!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> Warning: Undefined array key "REQUEST_METHOD" in /in/FcqrA on line 24 <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action="/in/FcqrA"> Password Length: <input type="text" name="name" value="0"> <span class="error">* Warning: Undefined variable $passwordLengthErr in /in/FcqrA on line 86 </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value=" Warning: Undefined variable $includeLetters in /in/FcqrA on line 88 " checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> Notice: Undefined index: REQUEST_METHOD in /in/FcqrA on line 24 <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action="/in/FcqrA"> Password Length: <input type="text" name="name" value="0"> <span class="error">* Notice: Undefined variable: passwordLengthErr in /in/FcqrA on line 86 </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value=" Notice: Undefined variable: includeLetters in /in/FcqrA on line 88 " checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
Output for 7.3.32 - 7.3.33
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action="/in/FcqrA"> Password Length: <input type="text" name="name" value="0"> <span class="error">* </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value="" checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
Output for 5.2.3 - 5.2.17
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> Notice: Undefined index: REQUEST_METHOD in /in/FcqrA on line 24 <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action="/in/FcqrA"> Password Length: <input type="text" name="name" value="0"> <span class="error">* Notice: Undefined variable: passwordLengthErr in /in/FcqrA on line 86 </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value=" Notice: Undefined variable: includeLetters in /in/FcqrA on line 88 " checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> Notice: Undefined index: REQUEST_METHOD in /in/FcqrA on line 24 <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action=""> Password Length: <input type="text" name="name" value="0"> <span class="error">* Notice: Undefined variable: passwordLengthErr in /in/FcqrA on line 86 </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value=" Notice: Undefined variable: includeLetters in /in/FcqrA on line 88 " checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
<!DOCTYPE HTML> <html> <head> <style> .error {color: #FF0000;} </style> </head> <body> Notice: Undefined index: REQUEST_METHOD in /in/FcqrA on line 24 <h2>PHP Form Validation Example</h2> <p><span class="error">* required field.</span></p> <form method="post" action=""> Password Length: <input type="text" name="name" value="0"> <span class="error">* Notice: Undefined variable: passwordLengthErr in /in/FcqrA on line 86 </span> <br><br> Include Letters: <input type="checkbox" name="vehicle" value=" Notice: Undefined variable: includeLetters in /in/FcqrA on line 88 " checked> E-mail: <input type="text" name="email" value=""> <span class="error">* </span> <br><br> Website: <input type="text" name="website" value=""> <span class="error"></span> <br><br> Comment: <textarea name="comment" rows="5" cols="40"></textarea> <br><br> Gender: <input type="radio" name="gender" value="female">Female <input type="radio" name="gender" value="male">Male <span class="error">* </span> <br><br> <input type="submit" name="submit" value="Submit"> </form> <h2>Your Input:</h2><br><br><br><br> </body> </html>
preferences:
217.68 ms | 404 KiB | 340 Q