sanis

<?php
// http://nob-log.info/2012/04/12/phper-filter-validate-email/

$times = 10000;

$result = array();

// preg_match
// regexp is stolen from:
// https://github.com/php/php-src/blob/master/ext/filter/logical_filters.c#L525

sanis

<?php
    function strip_word_html(
        $text,
        $allowed_tags = '<a><ul><li><b><i><sup><sub><em><strong><u><br><br/><br /><p><h2><h3><h4><h5><h6>'
    ) {
        mb_regex_encoding('UTF-8');
        //replace MS special characters first
        $search = array('/&lsquo;/u', '/&rsquo;/u', '/&ldquo;/u', '/&rdquo;/u', '/&mdash;/u');
        $replace = array('\'', '\'', '"', '"', '-');
        $text = preg_replace($search, $replace, $text);

sanis

<?php
/**
 * composer require phpbench/phpbench
 * php vendor/bin/phpbench run CachingBench.php --report=default
 */

/*
PhpBench 0.13.0. Running benchmarks.

\CachingBench