Lines Matching refs:function
2 Test is_callable() function : usage variations - defined functions
9 * Description: Verify that the contents of a variable can be called as a function
14 Description: use iscallable() on given string to check for valid function name
15 returns true if valid function name, false otherwise
17 function check_iscallable( $functions ) {
33 /* function name with simple string */
34 function someFunction() {
37 /* function name with mixed string and integer */
38 function x123() {
41 /* function name as NULL */
42 function NULL() {
45 /* function name with boolean name */
46 function false() {
49 /* function name with string and special character */
50 function Hello_World() {
60 /* use check_iscallable() to check whether given string is valid function name