There are two string operators. The first is the
concatenation operator ('.'), which returns the concatenation
of its right and left arguments. The second is the
concatenating assignment operator ('.='), which appends the
argument on the right side to the argument on the left side.
Please read
Assignment Operators for more information.
$a = "Hello "; $b = $a . "World!"; // now $b contains "Hello World!" $a = "Hello "; $a .= "World!"; // now $a contains "Hello World!" |