Lines Matching refs:is_null
2 Test is_null() function
5 /* Prototype: bool is_null ( mixed $var );
9 echo "*** Testing is_null() with valid null values ***\n";
35 /* loop to check that is_null() recognizes different
40 var_dump( is_null($null_val) );
123 is_null() on non null types, expected output: bool(false) */
127 var_dump( is_null($type) );
132 var_dump( is_null() );
135 var_dump( is_null(NULL, null) );
145 *** Testing is_null() with valid null values ***
291 Warning: is_null() expects exactly 1 parameter, 0 given in %s on line %d
294 Warning: is_null() expects exactly 1 parameter, 2 given in %s on line %d
