--- /dev/null
+--TEST--
+Test is_callable() function : usage variations - defined functions
+--INI--
+precision=14
+error_reporting = E_ALL & ~E_NOTICE | E_STRICT
+--FILE--
+<?php
+/* Prototype: bool is_callable ( mixed $var [, bool $syntax_only [, string &$callable_name]] );
+ * Description: Verify that the contents of a variable can be called as a function
+ * Source code: ext/imap/php_imap.c
+ */
+
+/* Prototype: void check_iscallable( $functions );
+ Description: use iscallable() on given string to check for valid function name
+ returns true if valid function name, false otherwise
+*/
+function check_iscallable( $functions ) {
+ $counter = 1;
+ foreach($functions as $func) {
+ echo "-- Iteration $counter --\n";
+ var_dump( is_callable($func) ); //given only $var argument
+ var_dump( is_callable($func, TRUE) ); //given $var and $syntax argument
+ var_dump( is_callable($func, TRUE, $callable_name) );
+ echo $callable_name, "\n";
+ var_dump( is_callable($func, FALSE) ); //given $var and $syntax argument
+ var_dump( is_callable($func, FALSE, $callable_name) );
+ echo $callable_name, "\n";
+ $counter++;
+ }
+}
+
+echo "\n*** Testing is_callable() on defined functions ***\n";
+/* function name with simple string */
+function someFunction() {
+}
+
+/* function name with mixed string and integer */
+function x123() {
+}
+
+/* function name as NULL */
+function NULL() {
+}
+
+/* function name with boolean name */
+function false() {
+}
+
+/* function name with string and special character */
+function Hello_World() {
+}
+
+$defined_functions = array (
+ $functionVar1 = 'someFunction',
+ $functionVar2 = 'x123',
+ $functionVar3 = 'NULL',
+ $functionVar4 = 'false',
+ $functionVar5 = "Hello_World"
+);
+/* use check_iscallable() to check whether given string is valid function name
+ * expected: true as it is valid callback
+ */
+check_iscallable($defined_functions);
+
+?>
+===DONE===
+--EXPECT---
+*** Testing is_callable() on defined functions ***
+-- Iteration 1 --
+bool(true)
+bool(true)
+bool(true)
+someFunction
+bool(true)
+bool(true)
+someFunction
+-- Iteration 2 --
+bool(true)
+bool(true)
+bool(true)
+x123
+bool(true)
+bool(true)
+x123
+-- Iteration 3 --
+bool(true)
+bool(true)
+bool(true)
+NULL
+bool(true)
+bool(true)
+NULL
+-- Iteration 4 --
+bool(true)
+bool(true)
+bool(true)
+false
+bool(true)
+bool(true)
+false
+-- Iteration 5 --
+bool(true)
+bool(true)
+bool(true)
+Hello_World
+bool(true)
+bool(true)
+Hello_World
+===DONE===
\ No newline at end of file
--- /dev/null
+--TEST--
+Test is_callable() function
+--INI--
+precision=14
+error_reporting = E_ALL & ~E_NOTICE | E_STRICT
+--FILE--
+<?php
+/* Prototype: bool is_callable ( mixed $var [, bool $syntax_only [, string &$callable_name]] );
+ Description: Verify that the contents of a variable can be called as a function
+ In case of objects, $var = array($SomeObject, 'MethodName')
+*/
+
+echo "\n*** Testing error conditions ***\n";
+
+echo "\n-- Testing is_callable() function with less than expected no. of arguments --\n";
+var_dump( is_callable() );
+
+echo "\n-- Testing is_callable() function with more than expected no. of arguments --\n";
+var_dump( is_callable("string", TRUE, $callable_name, "EXTRA") );
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing error conditions ***
+
+-- Testing is_callable() function with less than expected no. of arguments --
+
+Warning: is_callable() expects at least 1 parameter, 0 given in %s on line %d
+NULL
+
+-- Testing is_callable() function with more than expected no. of arguments --
+
+Warning: is_callable() expects at most 3 parameters, 4 given in %s on line %d
+NULL
+===DONE===
\ No newline at end of file
--- /dev/null
+--TEST--
+Test is_callable() function : usage variations - undefined functions
+--INI--
+precision=14
+error_reporting = E_ALL & ~E_NOTICE | E_STRICT
+--FILE--
+<?php
+/* Prototype: bool is_callable ( mixed $var [, bool $syntax_only [, string &$callable_name]] );
+ Description: Verify that the contents of a variable can be called as a function
+ In case of objects, $var = array($SomeObject, 'MethodName')
+*/
+
+/* Prototype: void check_iscallable( $functions );
+ Description: use iscallable() on given string to check for valid function name
+ returns true if valid function name, false otherwise
+*/
+function check_iscallable( $functions ) {
+ $counter = 1;
+ foreach($functions as $func) {
+ echo "-- Iteration $counter --\n";
+ var_dump( is_callable($func) ); //given only $var argument
+ var_dump( is_callable($func, TRUE) ); //given $var and $syntax argument
+ var_dump( is_callable($func, TRUE, $callable_name) );
+ echo $callable_name, "\n";
+ var_dump( is_callable($func, FALSE) ); //given $var and $syntax argument
+ var_dump( is_callable($func, FALSE, $callable_name) );
+ echo $callable_name, "\n";
+ $counter++;
+ }
+}
+
+echo "\n*** Testing is_callable() on undefined functions ***\n";
+$undef_functions = array (
+ "", //empty string
+ '',
+ " ", //string with a space
+ ' ',
+ "12356",
+ "\0",
+ '\0',
+ "hello world",
+ 'hello world',
+ "welcome\0",
+ 'welcome\0',
+ "==%%%***$$$@@@!!",
+ "false",
+ "\070",
+ '\t', //escape character
+ '\007',
+ '123',
+ 'echo()'
+);
+
+/* use check_iscallable() to check whether given string is valid function name
+ * expected: true with $syntax = TRUE
+ * false with $syntax = FALSE
+ */
+check_iscallable($undef_functions);
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing is_callable() on undefined functions ***
+-- Iteration 1 --
+bool(false)
+bool(true)
+bool(true)
+
+bool(false)
+bool(false)
+
+-- Iteration 2 --
+bool(false)
+bool(true)
+bool(true)
+
+bool(false)
+bool(false)
+
+-- Iteration 3 --
+bool(false)
+bool(true)
+bool(true)
+
+bool(false)
+bool(false)
+
+-- Iteration 4 --
+bool(false)
+bool(true)
+bool(true)
+
+bool(false)
+bool(false)
+
+-- Iteration 5 --
+bool(false)
+bool(true)
+bool(true)
+12356
+bool(false)
+bool(false)
+12356
+-- Iteration 6 --
+bool(false)
+bool(true)
+bool(true)
+%c
+bool(false)
+bool(false)
+%c
+-- Iteration 7 --
+bool(false)
+bool(true)
+bool(true)
+\0
+bool(false)
+bool(false)
+\0
+-- Iteration 8 --
+bool(false)
+bool(true)
+bool(true)
+hello world
+bool(false)
+bool(false)
+hello world
+-- Iteration 9 --
+bool(false)
+bool(true)
+bool(true)
+hello world
+bool(false)
+bool(false)
+hello world
+-- Iteration 10 --
+bool(false)
+bool(true)
+bool(true)
+welcome%c
+bool(false)
+bool(false)
+welcome%c
+-- Iteration 11 --
+bool(false)
+bool(true)
+bool(true)
+welcome\0
+bool(false)
+bool(false)
+welcome\0
+-- Iteration 12 --
+bool(false)
+bool(true)
+bool(true)
+==%%%***$$$@@@!!
+bool(false)
+bool(false)
+==%%%***$$$@@@!!
+-- Iteration 13 --
+bool(false)
+bool(true)
+bool(true)
+false
+bool(false)
+bool(false)
+false
+-- Iteration 14 --
+bool(false)
+bool(true)
+bool(true)
+8
+bool(false)
+bool(false)
+8
+-- Iteration 15 --
+bool(false)
+bool(true)
+bool(true)
+\t
+bool(false)
+bool(false)
+\t
+-- Iteration 16 --
+bool(false)
+bool(true)
+bool(true)
+\007
+bool(false)
+bool(false)
+\007
+-- Iteration 17 --
+bool(false)
+bool(true)
+bool(true)
+123
+bool(false)
+bool(false)
+123
+-- Iteration 18 --
+bool(false)
+bool(true)
+bool(true)
+echo()
+bool(false)
+bool(false)
+echo()
+===DONE===
\ No newline at end of file
--- /dev/null
+--TEST--
+Test is_callable() function : usage variations - on invalid function names
+--INI--
+precision=14
+error_reporting = E_ALL & ~E_NOTICE | E_STRICT
+--FILE--
+<?php
+/* Prototype: bool is_callable ( mixed $var [, bool $syntax_only [, string &$callable_name]] );
+ Description: Verify that the contents of a variable can be called as a function
+ In case of objects, $var = array($SomeObject, 'MethodName')
+*/
+
+/* Prototype: void check_iscallable( $functions );
+ Description: use iscallable() on given string to check for valid function name
+ returns true if valid function name, false otherwise
+*/
+function check_iscallable( $functions ) {
+ $counter = 1;
+ foreach($functions as $func) {
+ echo "-- Iteration $counter --\n";
+ var_dump( is_callable($func) ); //given only $var argument
+ var_dump( is_callable($func, TRUE) ); //given $var and $syntax argument
+ var_dump( is_callable($func, TRUE, $callable_name) );
+ echo $callable_name, "\n";
+ var_dump( is_callable($func, FALSE) ); //given $var and $syntax argument
+ var_dump( is_callable($func, FALSE, $callable_name) );
+ echo $callable_name, "\n";
+ $counter++;
+ }
+}
+
+echo "\n*** Testing is_callable() on invalid function names ***\n";
+/* check on unset variables */
+$unset_var = 10;
+unset ($unset_var);
+
+/* opening file resource type */
+$file_handle = fopen (__FILE__, "r");
+
+$variants = array (
+ NULL, // NULL as argument
+ 0, // zero as argument
+ 1234567890, // positive value
+ -100123456782, // negative value
+ -2.000000, // negative float value
+ .567, // positive float value
+ FALSE, // boolean value
+ array(1, 2, 3), // array
+ @$unset_var,
+ @$undef_var, //undefined variable
+ $file_handle
+);
+
+/* use check_iscallable() to check whether given variable is valid function name
+ * expected: false
+ */
+check_iscallable($variants);
+
+/* closing resources used */
+fclose($file_handle);
+
+?>
+===DONE===
+--EXPECTF--
+*** Testing is_callable() on invalid function names ***
+-- Iteration 1 --
+bool(false)
+bool(false)
+bool(false)
+
+bool(false)
+bool(false)
+
+-- Iteration 2 --
+bool(false)
+bool(false)
+bool(false)
+0
+bool(false)
+bool(false)
+0
+-- Iteration 3 --
+bool(false)
+bool(false)
+bool(false)
+1234567890
+bool(false)
+bool(false)
+1234567890
+-- Iteration 4 --
+bool(false)
+bool(false)
+bool(false)
+-100123456782
+bool(false)
+bool(false)
+-100123456782
+-- Iteration 5 --
+bool(false)
+bool(false)
+bool(false)
+-2
+bool(false)
+bool(false)
+-2
+-- Iteration 6 --
+bool(false)
+bool(false)
+bool(false)
+0.567
+bool(false)
+bool(false)
+0.567
+-- Iteration 7 --
+bool(false)
+bool(false)
+bool(false)
+
+bool(false)
+bool(false)
+
+-- Iteration 8 --
+bool(false)
+bool(false)
+bool(false)
+Array
+bool(false)
+bool(false)
+Array
+-- Iteration 9 --
+bool(false)
+bool(false)
+bool(false)
+
+bool(false)
+bool(false)
+
+-- Iteration 10 --
+bool(false)
+bool(false)
+bool(false)
+
+bool(false)
+bool(false)
+
+-- Iteration 11 --
+bool(false)
+bool(false)
+bool(false)
+Resource id #%d
+bool(false)
+bool(false)
+Resource id #%d
+===DONE===
\ No newline at end of file