3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php foreach ([0.1, -0.1, 1.0, 123.4, -123.4, -5.45, 5.46] as $i) { $b=sprintf("%.1e\n", $i); echo $i.' => '.(float)$b. "\n"; }
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
0.1 => 0.1 -0.1 => -0.1 1 => 1 123.4 => 120 -123.4 => -120 -5.45 => -5.5 5.46 => 5.5
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/03EEG on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/03EEG on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/03EEG on line 3
Process exited with code 255.