3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function uppercase(Traversable $in) { foreach ($in as $word) { yield strtoupper($word); } } function reverse(Traversable $in) { foreach ($in as $word) { yield strrev($word); } } function each_println(Traversable $in) { foreach ($in as $line) { echo "$line\n"; } } function allAbove(Traversable $in) { foreach($in as $word) { yield array('upper' => strtoupper($word), 'rev' => strrev($word), 'combined' => strrev(strtoupper($word))); } } each_println(reverse(uppercase(new ArrayIterator(["foo", "bar", "baz"])))); foreach(allAbove(new ArrayIterator(["foo", "bar", "baz"])) as $item) { each_println(new ArrayIterator($item)); }
Output for 5.5.0 - 7.1.0
OOF RAB ZAB FOO oof OOF BAR rab RAB BAZ zab ZAB
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'strtoupper' (T_STRING) in /in/hDRK5 on line 6
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/hDRK5 on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/hDRK5 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/hDRK5 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/hDRK5 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/hDRK5 on line 3
Process exited with code 255.