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    <p>One way to confirm that something has been typed is to use the HTML5 required attribute in the password field like this</p> <pre><code>&lt;input type="password" name="yourname" id="yourid" required /&gt; </code></pre> <p>This always confirms that something has been typed in the password field. May be this helps.</p> <p>Try out this:</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;title&gt;Form validation test&lt;/title&gt; &lt;script type="text/javascript"&gt; function validateAndEncrypt() { var email = document.getElementById("email"); var name = document.getElementById("name"); var pass = document.getElementById("password"); //if you want to validate the password only check the value of password field only if(email.value== "" || name.value == "" || pass.value== "") { alert("One of the fields is empty the script cannot continue.") return false; } else { // you can encrypt your password here alert("Everyting is fine, now we can proceed further"); return true; } } //if you want to check the password field before hitting the button function checkPassword() { var pass = document.getElementById("password"); if(pass.value=="") { alert("The password field is empty"); return false; } return true; } &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;form action="register.php" method="post"&gt; Email: &lt;input type="text" name="email" id="email" /&gt;&lt;br /&gt; Username: &lt;input type="text" name="username" id="name"/&gt;&lt;br /&gt; Password: &lt;input type="password" name="password" id="password" onblur="return checkPassword();"required /&gt;&lt;br /&gt; &lt;input type="submit" value="Register" onclick="return validateAndEncrypt();" /&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
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    1. COYeah good suggestion, I have thought of that myself as well. Though I have heard rumors that this does not work in the browser Safari and IE 9>. So what happens if someone with Safari uses my registration form, will they then be able to make a password containing 0 characters? Because that shouldn't be possible in any way. :(
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    2. COyes, you are right. why dont you use some form validation and then call the hashing function. something like validate the form inside a function and then call the hashing function from within the validating function. or you can use server side encryption like md5 or sha2 to encrypt your password.
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    3. COHmm, can I validate the password field before its sent to the server if I make a php function and call it within the <form>?
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