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( $phone ) ) { return false; } // end if } // end else return true; } // end function is_valid_phone
File size calculator function return file size format into kb, mb or gb. function file_size($size, $out = 'kb', $precision = 2) { switch ($out) { case 'kb': return round($...
Encrypt function return different value with each execute but decrypt function return input value. for example: first execute: encrypt('hello') => 'axxdfg34', decrypt('axxdfg34') return 'hello'...
Resize image function for jpg format. $mood between max and min. if you choose max, this mean max size of image is $ta otherwise min size of image is $ta. function makeTheThumb( $ppath, $ta, $mood ) ...
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; } ...
