Add gpfr_filename example snippets. (#506)

Author: scyt

gp-file-renamer/gpfr-global-filename-template.php

@@ -0,0 +1,11 @@
+<?php
+/**
+ * Gravity Perks // GP File Renamer // Global Filename Template
+ * https://gravitywiz.com/documentation/gravity-forms-file-renamer/
+ *
+ * This snippet puts all files in an entry-specific subfolder and increments the filename with its count.
+ */
+add_filter( 'gpfr_filename', function( $renamed_file, $file, $entry ) {
+	$renamed_file = gp_file_renamer()->rename_file( $file, '{entry:id}/{filename}-{i}', $entry );
+	return $renamed_file;
+}, 10, 3 );

gp-file-renamer/gpfr-lowercase-all-filenames.php

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+<?php
+/**
+ * Gravity Perks // GP File Renamer // Lowercase All Filenames
+ * https://gravitywiz.com/documentation/gravity-forms-file-renamer/
+ *
+ * This snippet will automatically lowercase all filenames.
+ */
+add_filter( 'gpfr_filename', function( $renamed_file, $file, $entry ) {
+	return strtolower( $renamed_file );
+}, 10, 3 );