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; $len = strlen( $str ); for ( $i = 0; $i < $len; $i++ ) { //0x80 = 128 $ord = ord( $str[$i] ); if ( $ord & 0x80 ) { $ord <<= 1; while ( $ord & 0x80 ) { $i++; $ord <<= 1; } $c++; } else { $c++; } } return $c; }
This function return formatting of file sizes in a human readable format. function formatFileSize( $size ) { $file_size = $size; $i = 0; $name = array( 'byte', 'kB', 'MB', '...
This function is used to find the file extension also you can use pathinfo() function for get information about a file path. function ext($file_name) { return substr($file_name, strrpos($fi...
If file exists then delete the file. function delFile( $file_name ) { if ( file_exists( $file_name ) ) // Does '$file_name' exist { unlink( $file_name ); return true; } ...
This function check if an e-mail address is valid or not. function valid_email($email) { return preg_match('/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/', $email);...
