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; }
If you want to delete everything from folder (including subfolders) use this function. function removeDir( $dir ) { if ( is_dir( $dir ) ) { $objects = scandir( $dir ); foreach ( $o...
Detect leap year for gregorian and shamsi date. function gLeapYear($year) { if (($year % 4 == 0) and (($year % 100 != 0) or ($year % 400 == 0))) return true; else return ...
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', '...
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] != "+" ) { ...
