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<?php function nums() { $ary = [24,25,26,27,28,29,30,31,32]; for($x = 0, $max = count($ary); $x < $max; $x += 2) { $cmd = (yield $ary[$x]); // yield expr if ($cmd == 'stop') { echo 'Stopped the generator during iteration ',$times,"\n"; return; } } } $gen = nums(); $times = 1; foreach ($gen as $value) { echo "$value at iteration $times","\n"; if ($value == 28) { // don't let it get to 32 $gen->send('stop'); } }
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
24 at iteration 1 26 at iteration 1 28 at iteration 1 Stopped the generator during iteration Warning: Undefined variable $times in /in/VkVK6 on line 8
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
24 at iteration 1 26 at iteration 1 28 at iteration 1 Stopped the generator during iteration Notice: Undefined variable: times in /in/VkVK6 on line 8
Output for 7.3.32 - 7.3.33, 7.4.26
24 at iteration 1 26 at iteration 1 28 at iteration 1 Stopped the generator during iteration
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$ary' (T_VARIABLE) in /in/VkVK6 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, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/VkVK6 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 '[' in /in/VkVK6 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VkVK6 on line 3
Process exited with code 255.

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