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<?php function printer() { yield 3; echo $string; } $printer = printer(); foreach($printer as $v) { var_dump($v); } return; $printer->next(); $printer->send('Hello world!'); foreach($printer as $v) { var_dump($v); } ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(3) Warning: Undefined variable $string in /in/dFBPT on line 4
Output for 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
int(3) Notice: Undefined variable: string in /in/dFBPT on line 4
Output for 7.3.32 - 7.3.33
int(3)
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '3' (T_LNUMBER) in /in/dFBPT on line 3
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_LNUMBER in /in/dFBPT on line 3
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_LNUMBER in /in/dFBPT on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/dFBPT on line 3
Process exited with code 255.

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