<?php
class Foo {
public function bar() { echo 'a'; }
}
$foo = new Foo();
foreach ([['bar']] as $test) {
$method = $test[0];
$foo->$method();
// displays "a" ==> success
}
foreach ([['bar']] as $test) {
$foo->$test[0]();
// Notice "Array to string conversion" followed by
// "Function name must be a string"
}
a
Warning: Array to string conversion in /in/qdBTj on line 15
Warning: Undefined property: Foo::$Array in /in/qdBTj on line 15
Warning: Trying to access array offset on null in /in/qdBTj on line 15
Fatal error: Uncaught Error: Value of type null is not callable in /in/qdBTj:15
Stack trace:
#0 {main}
thrown in /in/qdBTj on line 15
Process exited with code 255.
a
Warning: Array to string conversion in /in/qdBTj on line 15
Warning: Undefined property: Foo::$Array in /in/qdBTj on line 15
Warning: Trying to access array offset on value of type null in /in/qdBTj on line 15
Fatal error: Uncaught Error: Value of type null is not callable in /in/qdBTj:15
Stack trace:
#0 {main}
thrown in /in/qdBTj on line 15
Process exited with code 255.
Output for 7.4.0 - 7.4.33
a
Notice: Array to string conversion in /in/qdBTj on line 15
Notice: Undefined property: Foo::$Array in /in/qdBTj on line 15
Notice: Trying to access array offset on value of type null in /in/qdBTj on line 15
Fatal error: Uncaught Error: Function name must be a string in /in/qdBTj:15
Stack trace:
#0 {main}
thrown in /in/qdBTj on line 15
Process exited with code 255.
Output for 7.3.32 - 7.3.33
a
Fatal error: Uncaught Error: Function name must be a string in /in/qdBTj:15
Stack trace:
#0 {main}
thrown in /in/qdBTj on line 15
Process exited with code 255.
a
Notice: Array to string conversion in /in/qdBTj on line 15
Notice: Undefined property: Foo::$Array in /in/qdBTj on line 15
Fatal error: Uncaught Error: Function name must be a string in /in/qdBTj:15
Stack trace:
#0 {main}
thrown in /in/qdBTj on line 15
Process exited with code 255.
Parse error: syntax error, unexpected '[' in /in/qdBTj on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/qdBTj on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/qdBTj on line 4
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/qdBTj on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/qdBTj on line 4
Process exited with code 255.