PHP offers an alternative syntax for some of its control structures; namely, if, while, for, foreach, and switch. In each case, the basic form of

elseif, as its name suggests, is a combination of if and else. Like else, it extends an if statement to execute a different statement in

Often you’d want to execute a statement if a certain condition is met, and a different statement if the condition is not met. This is

instanceof is used to determine whether a PHP variable is an instantiated object of a certain class: Example #1 Using instanceof with classes <?php class

Array Operators Example Name Result $a + $b Union Union of $a and $b. $a == $b Equality TRUE if $a and $b have the

There are two string operators. The first is the concatenation operator (‘.’), which returns the concatenation of its right and left arguments. The second is

PHP supports one execution operator: backticks («). Note that these are not single-quotes! PHP will attempt to execute the contents of the backticks as a

PHP supports one error control operator: the at sign (@). When prepended to an expression in PHP, any error messages that might be generated by

Comparison operators, as their name implies, allow you to compare two values. You may also be interested in viewing the type comparison tables, as they