3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php /* * convert square definition from x,y,l (x,y, length) to x1,y1,x2,y2 */ function point($sq) { return array( 'x1' => $sq['x'], 'y1' => $sq['y'], 'x2' => $sq['x'] + $sq['l'], 'y2' => $sq['y'] + $sq['l'], ); } /* * return intersect square */ function intersect(array $ps) { $r = max(array_map(function($e) { return $e['x1']; }, $ps)); $l = min(array_map(function($e) { return $e['x2']; }, $ps)); $t = max(array_map(function($e) { return $e['y1']; }, $ps)); $b = min(array_map(function($e) { return $e['y2']; }, $ps)); if ($r < $l && $b > $t) { return array( 'x1' => $l, 'y1' => $b, 'x2' => $r, 'y2' => $t, ); } return false; } /* * return square area */ function area($sq) { return abs(($sq['x1'] - $sq['x2']) * ($sq['y1'] - $sq['y2'])); } // input data $sq1 = array('x' => 2, 'y' => 2, 'l' => 4); $sq2 = array('x' => 3, 'y' => 100, 'l' => 4); echo 'Intersect: ' . ((false !== $intersect = intersect(array(point($sq1), point($sq2)))) ? 'yes' : 'no') . PHP_EOL; if (false !== $intersect) { echo 'Area: ' . area($intersect) . PHP_EOL; }
Output for 5.3.0 - 7.1.0
Intersect: no
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/1CmeN on line 21
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/1CmeN on line 19
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/1CmeN on line 19
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_ARRAY, expecting ')' in /in/1CmeN on line 19
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/1CmeN on line 19
Process exited with code 255.