PHP Switch for star rating in wordpress - switch-statement

Question

Trying to set up a star rating system from a number in a quick and simple way in my wordpress site.
Here is my code:
<?php
$stars = $business['rating'];
settype($stars, "integer");
switch ($stars) {
case 0:
echo '<img src="' . echo esc_url( home_url( '/' ) ); . 'wp-content/themes/child-theme/images/stars0.png" />';
break;
case 1:
echo '<img src="' . echo esc_url( home_url( '/' ) ); . 'wp-content/themes/child-theme/images/stars1.png" />';
break;
case 2:
echo '<img src="' . echo esc_url( home_url( '/' ) ); . 'wp-content/themes/child-theme/images/stars2.png" />';
break;
case 3:
echo '<img src="' . echo esc_url( home_url( '/' ) ); . 'wp-content/themes/child-theme/images/stars3.png" />';
break;
case 4:
echo '<img src="' . echo esc_url( home_url( '/' ) ); . 'wp-content/themes/child-theme/images/stars4.png" />';
break;
case 5:
echo '<img src="' . echo esc_url( home_url( '/' ) ); . 'wp-content/themes/child-theme/images/stars5.png" />';
break;
}
?>
Seems like it should work but it just isn't coming up.

Answer 1

What happens when you run your code?
What are the possible values for $business['rating']?
If the possible values are all strings that do not begin with a number, then when $stars is converted to an integer, $stars will be converted to 0.
In this scenario, case 0 will always be matched.
Test out the theory by removing case 0 adding a
default:
echo "No case matched: $stars for $business['rating']".
You also cannot add another echo statement, before the esc_url() function, and semicolon after the function when concatenating:
echo '<img src="' . esc_url( home_url( '/' ) ) . 'wp-content/themes/child-theme/images/stars0.png" />';
That might be a syntax error causing your code not to work.