A set of procedual functions to handle common text manipulation tasks in PHP

common.php

<?php

/**
 * Return the current server date and time to the caller 
 * 
 * @param      $format Date format 
 * @return     datetime Formated date and time 
 */
if( ! function_exists('datetime')){
    function datetime($format = 'Y-m-d H:i:s') {
        return (new DateTime())->format($format);
    }
}

if( ! function_exists('format_phone'))
{
    /**
     * Example $formatted = format_phone('+11234567890');
     * 
     * @param string $data
     * @param string $format
     */
    function format_phone($data, $format = 'US') {
        switch($format) {
            default: 
                $format = 'US';
        }
        
        if(  preg_match( '/^\+\d(\d{3})(\d{3})(\d{4})$/', $data,  $matches ) )
        {
            $result = $matches[1] . '-' .$matches[2] . '-' . $matches[3];
            return $result;
        }
    }
}

<?php

if( ! function_exists('rcopy')) 
{
    /**
     * Recursive function to copy entire directories 
     * 
     * @see http://php.net/manual/en/function.copy.php#91010
     * @param string $src Source directory
     * @param string $dst Destination directory 
     */
    function rcopy($src,$dst) {
            $dir = opendir($src);
            @mkdir($dst);
            while(false !== ( $file = readdir($dir)) ) {
                if (( $file != '.' ) && ( $file != '..' )) {
                    if ( is_dir($src . '/' . $file) ) {
                        rcopy($src . '/' . $file,$dst . '/' . $file);
                    }
                    else {
                        copy($src . '/' . $file,$dst . '/' . $file);
                    }
            }
        }
        closedir($dir);
    } 
}

if( ! function_exists('read_time'))
{
    /**
     * Calculate readtime 
     *
     * @param string $text
     * @param string $message 
     */
    function read_time($text, $message = 'min read') {
        $words  = str_word_count(strip_tags($text));
        $min    = ceil($words / 200);
        
        return $min . ' ' . $message;
    }
}