I have two php files first is sample.php and the second is if.php. I have some code written in sample.php basically declaration of two variables and an else statement. I have the if statement in if.php file which I'm including before else statement. But on running my code its shows an error:
Unexpected 'else'...etc.
Can you please help me figuring out what is wrong with the code?
Sample.php
<?php
$a=10;
$b=20;
include 'if.php';
else
{
echo $b.' is greater';
}
?>
if.php
<?php
if($a>$b)
{
echo $a.' is greater';
}
?>
include 'if.php';
else
Nice, there is no such thing as include else. Even if you have an if clause at the end of your included file, the include line breaks its sequence.
else can only come after either an if or an else if block, no third option. Period.
Here is how PHP parser will see your 2 files
if($a>$b){
echo $a.' is greater';
}
include "if.php";
else {
echo 'na';
}
Which is clearly invalid.
If you still want to keep things as they are, like you mentioned in the comments. You can do 1 small trick (amongst many other methods). Make your else another if which is contrary to the first if. Like
if.php
if($a>$b){
echo $a.' is greater';
}
main file
include "if.php";
if($a<=$b) {
echo 'na';
}
The include (or require) statement takes all the text/code/markup that exists in the specified file and copies it into the file that uses the include statement.
Including files is very useful when you want to include the same PHP, HTML, or text on multiple pages of a website.
The include and require statements are identical, except upon failure:
So, if you want the execution to go on and show users the output, even if the include file is missing, use the include statement. Otherwise, in case of FrameWork, CMS, or a complex PHP application coding, always use the require statement to include a key file to the flow of execution. This will help avoid compromising your application's security and integrity, just in-case one key file is accidentally missing.
Including files saves a lot of work. This means that you can create a standard header, footer, or menu file for all your web pages. Then, when the header needs to be updated, you can only update the header include file.
footer.php
<?php
echo "<p>Copyright © 1999-" . date("Y") . " W3Schools.com</p>";
?>
index.php
<!DOCTYPE html>
<html>
<body>
<h1>Welcome to my home page!</h1>
<p>Some text.</p>
<p>Some more text.</p>
<?php include 'footer.php';?>
</body>
</html>
Source from PHP 5 Include Files
So your code looks like this
if($a>$b)
{
echo $a.' is greater';
}
include "if.php";
else
{
echo 'na';
}
Simply Its totally wrong.