3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 4121.57;$b = 3998;$c = 123.57;$d = round( $a - $b - $c, 2);$e = round( $d, 2 );$f = e === 0; echo "\n";echo str_pad(print_r($d,TRUE),4,' ')." // NEGATIVE ZERO?"."\n";echo str_pad(print_r($e,TRUE),4,' ')." // Don't worry, it rounds to zero! -_-"."\n";echo str_pad(print_r($f,TRUE),4,' ')." // huh?
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected end of file, expecting variable (T_VARIABLE) or ${ (T_DOLLAR_OPEN_CURLY_BRACES) or {$ (T_CURLY_OPEN) in /in/0v34j on line 1
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected $end, expecting T_VARIABLE or T_DOLLAR_OPEN_CURLY_BRACES or T_CURLY_OPEN in /in/0v34j on line 1
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 $end in /in/0v34j on line 1
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/0v34j on line 1
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/0v34j on line 1
Process exited with code 255.
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234.73 ms | 940 KiB | 124 Q