preg_filter test

tests/pcre/preg_filter.php

@@ -0,0 +1,8 @@
+<?php
+namespace pcre\preg_filter;
+
+\print_r(\preg_filter(['/quick/', '/brown/'], "x", "quick fox"));
+\print_r(\preg_filter(['/quick/', '/brown/'], "x", ["fox", "brown fox"]));
+\print_r(\preg_filter(['/quick/', '/brown/'], "x", ["fox", "red fox"]));
+
+echo "Done.";