Syntax colouring on github for php code

Author: Antti Kuosmanen

readme.md

@@ -57,7 +57,8 @@ Example use:
 
 Send a thank you email to the email in the submission
 
-```
+```php
+<?php
 add_action( 'wplf_post_validate_submission', 'my_email_thankyou' );
 function my_email_thankyou( $return ) {
   // do nothing if form validation failed
@@ -80,7 +81,8 @@ Example use:
 
 Make sure people don't include dumb questions about Contact Form 7 in the message field.
 
-```
+```php
+<?php
 add_filter( 'wplf_validate_submission', 'my_form_validation' );
 function my_form_validation( $return ) {
   // skip this validation if submission has already failed
@@ -91,7 +93,7 @@ function my_form_validation( $return ) {
   // don't allow contact form 7 to be mentioned in the message field
   if( false !== strpos( strtolower( $_POST['message'] ), 'contact form 7' ) ) {
     $return->ok = 0;
-    $return->error = sprintf( __('I don't like Contact Form 7 so I won't accept your submission.'), intval( $_POST['_form_id'] ) );
+    $return->error = sprintf( __("I don't like Contact Form 7 so I won't accept your submission."), intval( $_POST['_form_id'] ) );
   }
   return $return;
 }