Lines Matching refs:null
5 echo "*** Testing is_null() with valid null values ***\n";
6 // different valid null values
13 // unset them to make it null.
16 $null_var2 = null;
20 null,
32 null values, expected output: bool(true) */
39 echo "\n*** Testing is_bool() on non null values ***\n";
81 "null",
109 array(null),
119 is_null() on non null types, expected output: bool(false) */
134 *** Testing is_null() with valid null values ***
158 *** Testing is_bool() on non null values ***
