Chek if a phone numbers is valid, according to its syntax (should be: "+390523599314"). True if it's valid, False otherwise
function is_valid_phone( $phone ) { if ( $phone[0] != "+" ) { return false; } // end if else { $phone = substr( $phone, 1 ); // delete the "+" if ( !is_numeric( $phone ) ) { return false; } // end if } // end else return true; } // end function is_valid_phone
The best way to determine the character count of a UTF8 string. function strlen_utf8( $str ) { return mb_strlen( $str, 'UTF-8' ); } //or... function strlen_utf8( $str ) { $c = 0;...
File size calculator function return file size format into kb, mb or gb. function file_size($size, $out = 'kb', $precision = 2) { switch ($out) { case 'kb': return round($...
Parse a string into separate words (array output). function parser($str, $char = ' ') { $str = trim($str); $str = $str . $char; $len = strlen($str); $words = array(); $w = '...
If you want to delete everything from folder (including subfolders) use this function. function removeDir( $dir ) { if ( is_dir( $dir ) ) { $objects = scandir( $dir ); foreach ( $o...
