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Problem with regular expressions.
So this is the the third time posting this question, but this time I'm uploading the entire script. I'm still having problems. This is what I need:
I want a function to echo a message if a username does not pass my requirments.
- Only letters and / or numbers (No other characters)
- Must start with a letter (not a number)
- No spaces
The current code:
I want a function to echo a message if a username does not pass my requirments.
- Only letters and / or numbers (No other characters)
- Must start with a letter (not a number)
- No spaces
The current code:
//validate username with limited characters
}else if (!(eregi('/[a-Z][a-Z,0-9]/i,',($_POST["username"])))){
echo "<p> </p><p> </p><p> </p><br />Username must only contain numbers and letters. No spaces.<p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
<?php
$servername = "localhost";
$username = "";
$password = "";
//validate fields
if(!$_POST["username"] || !$_POST["email"] || !$_POST["password1"] || !$_POST["password2"]){
echo "<p> </p><p> </p><p> </p><br />Please fill the required fields, <p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
//validate password
}else if($_POST["password1"] != $_POST["password2"]){
echo "<p> </p><p> </p><p> </p><br />Please go back, PASSWORDS do not match! <p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
//validate password length
}else if(strlen($_POST["password1"]) < 6){
echo "<p> </p><p> </p><p> </p><br />Please go back, PASSWORD is too short! <p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
//validate username length
}else if(strlen($_POST["username"]) < 5){
echo "<p> </p><p> </p><p> </p><br />Please go back, USERNAME is too short! MUST BE BETWEEN 5 to 10 characters.<p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
//validate username with limited characters
}else if (!(eregi('/[a-Z][a-Z,0-9]/i,',($_POST["username"])))){
echo "<p> </p><p> </p><p> </p><br />Username must only contain numbers and letters. No spaces.<p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
//validate email
}else if(!(eregi("^.+@.+\\..+$", $_POST['email']))){
echo "<p> </p><p> </p><p> </p><br />Please enter a valid EMAIL! <a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
//validate captcha
}else if(($_SESSION['security_code'] != $_POST['security_code']) || (empty($_SESSION['security_code'])) ){
echo "<p> </p><p> </p><p> </p><br />CAPTCHA CODE does not match! <p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
}else{
$conn= mysql_connect($servername,$username,$password)or die(mysql_error());
mysql_select_db("",$conn);
// check if already registered
$sql_check = "SELECT * FROM users WHERE email = '".$_POST[email]."'";
$result_check = mysql_query($sql_check,$conn) or die(mysql_error());
$row = mysql_fetch_assoc($result_check);
if($row['id']){
echo "<p> </p><p> </p><p> </p><br />EMAIL already registered! <p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
}else{
// check if already registered
$sql_check = "SELECT * FROM users WHERE username = '".$_POST[username]."'";
$result_check = mysql_query($sql_check,$conn) or die(mysql_error());
$row = mysql_fetch_assoc($result_check);
if($row['id']){
echo "<p> </p><p> </p><p> </p><br />USERNAME already registered! <p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
}else{
// insert in db
$sql = "INSERT INTO users (username, email, password, company, phone, services) VALUES ('".mysql_real_escape_string($_POST[username])."', '".mysql_real_escape_string($_POST[email])."', '".mysql_real_escape_string($_POST[password1])."', '".mysql_real_escape_string($_POST[company])."', '".mysql_real_escape_string($_POST[phone])."', '".mysql_real_escape_string($_POST[services])."')";
$result = mysql_query($sql,$conn) or die(mysql_error());
$subject = "You have been registered with";
$headers4=""; ///// Change this address within quotes to your address ///
$headers.="Reply-to: $headers4\n";
$headers .= "From: $headers4\n";
$headers .= "Errors-to: $headers4\n";
$headers .= "Content-type: text/html\r\n";
$message = '<style type="text/css">
body {
background-color: #999;
}
</style>
<p><img src="" width="400" height="167"></p>
<p>THANK YOU!!!</p>
<p> <span style="color: #000">You have successfully registered </span><span style="font-size: 18px"><span style="color: #00F; font-weight: bold;"US</span><span style="color: #FFF">!</span></span></p>
<p><span style="color: #000"> If you need to contact us you can always reach us through the</span> <span style="color: #00F; font-weight: bold;">CONTACT US</span> <span style="color: #000">page. </span></p>';
mail( $_POST['email'], $subject, $message, $headers );
echo "<p> </p><p> </p><p> </p><br /><h1>You Have Successfully Registered</h1>";
echo "<p> </p><p> </p><br /><a href='main_login.php'>go to login page</a>";
}
}
}
?>
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Don't use eregi as it is now a deprecated function - see http://www.php.net/eregi use preg_match instead.
Moving onward and looking at your code, you had no quantifiers in the expression. try the following UNTESTED code
Notice the {1} and + I have added. I have also removed a spurious comma
Moving onward and looking at your code, you had no quantifiers in the expression. try the following UNTESTED code
//validate username with limited characters
}else if (! preg_match('#[a-Z]{1}[a-Z,0-9]+#i', $_POST["username"] ) ){
echo "<p> </p><p> </p><p> </p><br />Username must only contain numbers and letters. No spaces.<p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
Notice the {1} and + I have added. I have also removed a spurious comma
Just noticed another comma in the regex so try this instead
//validate username with limited characters
}else if (! preg_match('#[a-Z]{1}[a-Z0-9]+#i', $_POST["username"] ) ){
echo "<p> </p><p> </p><p> </p><br />Username must only contain numbers and letters. No spaces.<p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
Arrgggghhhhh!!!!! Not my day today. Don't mix cases like a-Z use A-Z or a-z. The 'i' after the closing # will make the expression case insensitive.
Sorry for so many corrections...... :-(
Sorry for so many corrections...... :-(
//validate username with limited characters
}else if (! preg_match('#[A-Z]{1}[A-Z,0-9]+#i', $_POST["username"] ) ){
echo "<p> </p><p> </p><p> </p><br />Username must only contain numbers and letters. No spaces.<p> </p><p> </p><a href='javascript:javascript:history.go(-1)'>Click here to go back to previous page</a>";
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