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<?php function foo() { yield 'a'; yield 'b'; yield 'c'; yield 'd'; yield 'e'; } $items = foo(); foreach ( $items as $outer ) { echo "Outer element: $outer\n"; if ( $outer == 'c' ) { foreach ( $items as $inner ) { echo "Inner element: $inner\n"; } } }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.14
Outer element: a Outer element: b Outer element: c Fatal error: Uncaught Exception: Cannot rewind a generator that was already run in /in/BYOmQ:8 Stack trace: #0 {main} thrown in /in/BYOmQ on line 8
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Outer element: a Outer element: b Outer element: c Fatal error: Uncaught exception 'Exception' with message 'Cannot rewind a generator that was already run' in /in/BYOmQ:8 Stack trace: #0 /in/BYOmQ(8): unknown() #1 {main} thrown in /in/BYOmQ on line 8
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected ''a'' (T_CONSTANT_ENCAPSED_STRING) in /in/BYOmQ on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/BYOmQ on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/BYOmQ on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/BYOmQ on line 2
Process exited with code 255.
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