PHP if/else statement

Question

I\'m a complete newbie to PHP but found it can be very useful. How can I write the following statement in PHP:

If body ID = \"home\" then insert some html, e.g.

Answer 1

You can try using this :

$html = '';
if ( $body_id === 'home' )
{
    $html .= '<h1>I am home!</h1>';
}
else
{
    $html .= '<p>I\'m not home.</p>';
}

echo $html;

This will echo the html code depending on the $body_id variable and what it contains.

Answer 2

You can use a switch command like so:

switch($body)
{
    case 'home': //$body == 'home' ?
        echo '<h1>I am home!</h1>';
    break;

    case 'not_home':
    default:
        echo '<p>I'm not home.</p>';
    break;
}

The default means that if $body does not match any case values, then that will be used, the default is optional.

Another way is as you say, if/else statements, but if within template / view pages you should try and use like so:

<?php if ($body == 'home'):?>
    <h1>I am home!</h1>
<?php else:?>
    <p>I'm not home!</p>
<?php endif; ?>

Answer 3

Doing it with native PHP templating:

<?php if ($bodyID==='home') { ?>
    <h1>I am home!</h1>
<?php } else { ?>
    <p>I'm not home!</p>
<?php } ?>

Answer 4

Assuming $bodyID is a variable:

<?php 
    if ($bodyID==='home') {
        echo "<h1>I am home!</h1>";}
    else {
        echo "<p>I'm not home!</p>";}
?>

Answer 5

you can try in the following way:

$body_id = "home";

if ($body_id == "home") {
    echo "I am home!";
} else {
    echo "I am not home!";
}

or

$body_id = "home"; 

if (strcmp($body_id, "home") !== 0) { 
    echo 'I am not home!'; 
} 
else { 
    echo 'I am home!'; 
} 

Reference:

https://www.geeksforgeeks.org/string-comparison-using-vs-strcmp-in-php/

Answer 6

Personally I think that the best way to do that without refreshing and without having to set a variable (like $body or something like that) is to use a javascript code, this because "communications" between JS & PHP is a one-way communication.

<script language="javascript">
<!--
if( document.body.id === "home" ){
    window.document.write("<h1>I am home!</h1>") ;
}
else{
    window.document.write("<p>I'm not home!</p>") ;
}
-->
</script>

otherwise you can build a form and then take the body.id value using $_GET function... It always depends on what you've to do after you now body.id value.

Hope this will be usefull & clear.