How to apply if-else on css class in php code? - php

Question

I am trying to apply if else condition in bootstrap class with php variable but its not working. My variable is getting result.
Below is my tbody where i am applying php code:
<div class="<?php '#count_rows#' <= '2')
{
echo 'middle_menu';
}
else
{
echo 'middle_menu1';
} ?>">
<table class="table_4">
<thead>
<tr>
<th class="th_11">Quantity</th>
</tr>
</thead>
<tbody>
#TABLE_BODY#
</tbody>
</table>
</div>
Below is my 2 css classes:
.middle_menu
{
margin-top: 40px;
padding-bottom: 200px;
}
.middle_menu1
{
margin-top: 40px;
}
I am fetching my variable from another page where i set this type of opening and closing variable with #.
Below is my code for your reference but i dont think that is an issue for me because i check this #count_rows# variable with print_r in my current page and it showing me correct result.
foreach ($form_field as $key => $value){
$htmlContent = str_replace('#'.$key.'#', $value, $htmlContent);
}

Answer 1

<?php $className = $count_rows <= 2 ? 'middle_menu' : 'middle_menu1'; ?>
<div class="<?php echo $className; ?>" />
You can create a test.php then run php test.php and you should see the result
<?php
// $count_rows = 1;
$count_rows = 3;
$className = $count_rows <= 2 ? 'middle_menu' : 'middle_menu1';
echo "<div class=\"$className\"/>\n";

Answer 2

<div class="<?php '#count_rows#' <= '2')
You are missing a keyword here and also some brackets (which should cause a fatal syntax error), Also you are comparing two different literal strings - surely one of the terms should be a PHP variable?
You can't read back stuff you've previously written to the output stream - you are confusing what is happening in HTML, CSS and PHP.
I think you mean...
<div class="<?php if ($form_fields['count_rows'] <= '2')
Comparing a number by casting it to a string is rather dangerous.
Personally I would do this:
<div class="<?php echo (2 <= $form_fields['count_rows'])
? 'middle_menu' : 'middle_menu1'; ?>">
Since you didn't mention that the script blew up in your face, I suspect there may be a lot of other issues.
foreach ($form_field as $key => $value){
$htmlContent = str_replace('#'.$key.'#', $value, $htmlContent);
}
This is very innefficient. Consider:
$find=array_keys($form_field);
foreach ($find as $index=>$term) {
$find[$index]='#' . $term . '#';
}
$htmlContent = str_replace($find, $form_feld, $htmlContent);