如何添加HTML表单在PHP？

Question

你如何在PHP中添加HTML表单？我如果会议已定才应该的形式显示，以检查isset即一个条件。 ECHO语句不工作，因为 “”

<pre> 
<form action="index.php" method="post"> 
<br /> 
&nbsp;First Name: Last Name:<br/> 
<input type="text" name="firstname" placeholder ="First Name"/> 
<input type="text" name="lastname" placeholder ="Last Name"/><br /> 

&nbsp;Email-id:<br /> 
<input type="text" name="email-id" placeholder ="Your Email-id"/><br /> 

&nbsp;Password:<br /> 
<input type="password" name="password" placeholder ="Your Password"/> 
<br /> 
&nbsp;Re-enter Password:<br /> 
<input type="password" name="password1" placeholder ="Re-enter Password"/> 
<br /></form><pre> 

Answer 1

<?php if(isset($_SESSION['someValue'])): ?> 
<form action="index.php" method="post"> 
    <p>Whatevs...</p> 
</form> 
<?php endif; ?> 

Answer 2

echo "I want to echo \"quotes\""; // prints: I want to echo "quotes" 
echo 'I want to echo "quotes"'; // prints: I want to echo "quotes" 

选择之一，它既作品。或交替：

<?php if($something == $the_same_as_this): ?> 
    I want to print whatever I want, including "quotes" 
<?php endif; ?> 

将输出字符串（只要真正表达评估）

Answer 3

尝试以下操作：

<?php if(your_condition_here): ?> 
<form> your form here </form> 
<?php endif; ?> 

这样，你就不必用echo或print并使其复杂化。