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<?php function genmer($gens) { foreach($gens as $gen) { while($gen->valid()) { yield $gen->current(); $gen->next(); } } } function gen_one_to_three() { for ($i = 1; $i <= 3; $i++) { // Note that $i is preserved between yields. yield $i; } } $merged = [$on, $two, $three]; foreach($merged as $m) { foreach($m as $g) { var_dump($g); } }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $on in /in/PbNrl on line 20 Warning: Undefined variable $two in /in/PbNrl on line 20 Warning: Undefined variable $three in /in/PbNrl on line 20 Warning: foreach() argument must be of type array|object, null given in /in/PbNrl on line 23 Warning: foreach() argument must be of type array|object, null given in /in/PbNrl on line 23 Warning: foreach() argument must be of type array|object, null given in /in/PbNrl on line 23
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: on in /in/PbNrl on line 20 Notice: Undefined variable: two in /in/PbNrl on line 20 Notice: Undefined variable: three in /in/PbNrl on line 20 Warning: Invalid argument supplied for foreach() in /in/PbNrl on line 23 Warning: Invalid argument supplied for foreach() in /in/PbNrl on line 23 Warning: Invalid argument supplied for foreach() in /in/PbNrl on line 23
Output for 7.3.32 - 7.3.33
Warning: Invalid argument supplied for foreach() in /in/PbNrl on line 23 Warning: Invalid argument supplied for foreach() in /in/PbNrl on line 23 Warning: Invalid argument supplied for foreach() in /in/PbNrl on line 23
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$gen' (T_VARIABLE) in /in/PbNrl on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/PbNrl on line 6
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
Parse error: syntax error, unexpected T_VARIABLE in /in/ucpOO on line 6
Process exited with code 255.
Output for 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_VARIABLE in /in/ucpOO on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ucpOO on line 6
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected T_VARIABLE in /in/PbNrl on line 6
Process exited with code 255.
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