is_scalar

Description

Finds whether the given variable is a scalar.

Scalar variables are those containing an integer, float, string or boolean. Types array, object and resource are not scalar.

Parameters

Return Values

Returns TRUE if var is a scalar FALSE otherwise.

Examples

Example 1. is_scalar() example <?php function show_var($var) {     if (is_scalar($var)) {         echo $var;     } else {         var_dump($var);     } } $pi = 3.1416; $proteins = array("hemoglobin", "cytochrome c oxidase", "ferredoxin"); show_var($pi); show_var($proteins) ?> The above example will output: 3.1416 array(3) { [0]=> string(10) "hemoglobin" [1]=> string(20) "cytochrome c oxidase" [2]=> string(10) "ferredoxin" }

See Also