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<?php function &foo() { $x = array(1,2,3); yield $x; echo "Gen: "; var_dump($x); $x[] = 99; return $x; } $rets = array(); $gen = foo(); foreach ($gen as &$val) { var_dump($val); $val[] = 42; $rets[] =& $val; } $rv =& $gen->getReturn(); var_dump($rv); $rets[0][] = 100; var_dump($rv); $rv[] = 200; var_dump($rv); var_dump($gen->getReturn); var_dump($rets);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } Gen: array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) } Notice: Only variables should be assigned by reference in /in/N8au6 on line 18 array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(200) } Warning: Undefined property: Generator::$getReturn in /in/N8au6 on line 24 NULL array(1) { [0]=> &array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(100) } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } Gen: array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) } Notice: Only variables should be assigned by reference in /in/N8au6 on line 18 array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(200) } Warning: Undefined property: Generator::$getReturn in /in/N8au6 on line 24 NULL array(1) { [0]=> &array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(100) } }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } Gen: array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) } Notice: Only variables should be assigned by reference in /in/N8au6 on line 18 array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(200) } Notice: Undefined property: Generator::$getReturn in /in/N8au6 on line 24 NULL array(1) { [0]=> &array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(100) } }
Output for 7.3.32 - 7.3.33
array(3) { [0]=> int(1) [1]=> int(2) [2]=> int(3) } Gen: array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) } array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(200) } NULL array(1) { [0]=> &array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(42) [4]=> int(99) [5]=> int(100) } }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Generators cannot return values using "return" in /in/N8au6 on line 8
Process exited with code 255.
Output for 5.4.1 - 5.4.45
Parse error: syntax error, unexpected '$x' (T_VARIABLE) in /in/N8au6 on line 5
Process exited with code 255.
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