3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('precision', 19); ini_set('serialize_precision', 19); $int = '0'; $z5 = $int . '.5'; $float = 2.5; $float = 0.49999999999999994; //$float = 0.156; //$float = 0.00000000000000001; //$float = 4503599627370495.5; //$float = 9007199254740991.0; //$float = 2.0; $copy = $float; $flstr = '+' . $copy . ''; $sign = trim($flstr, '.,0123456789'); $sign = strtr($sign, array('+' => '')); $int = (int) $float; $z5 = $int . '.5'; $tmp_value = $float; if($float > 0.0) { $nrnd1 = $float + 0.5; $nrnd2 = $float - 0.5; $rrnd = $nrnd2 + 0.5; if($rrnd == $float && $nrnd2 != $float) { $tmp_value = $nrnd1; } else { echo 'No'; } } else { $nrnd1 = 0.5 - $float; if(0.5 - $nrnd1 == $float) { $tmp_value = $float - 0.5; } } $zn = -0.1 * 0.0; var_dump($nrnd2, $tmp_value, -0.0 - 0.5, $float - 0.5); //ini_set('serialize_precision', 2); var_dump($float, 0.5 - $float, $float - 0.5, round($float));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.10.0100.00816.79
8.5.00.0120.00820.02
8.4.160.0250.00623.13
8.4.150.0020.00014.05
8.4.140.0110.01017.77
8.4.130.0120.00817.71
8.4.120.0090.01120.48
8.4.110.0120.00922.16
8.4.100.0080.01118.54
8.4.90.0100.00718.48
8.4.80.0130.00717.96
8.4.70.0110.00518.12
8.4.60.0050.00419.03
8.4.50.0040.00422.54
8.4.40.0130.00317.55
8.4.30.0060.01320.54
8.4.20.0170.00317.57
8.4.10.0080.01119.45
8.3.280.0090.01119.99
8.3.270.0140.00616.48
8.3.260.0150.00416.64
8.3.250.0120.00818.95
8.3.240.0150.00416.41
8.3.230.0110.00916.64
8.3.220.0120.00617.10
8.3.210.0050.00316.73
8.3.200.0050.00416.47
8.3.190.0130.00817.13
8.3.180.0070.01016.66
8.3.170.0050.01118.79
8.3.160.0110.00717.25
8.3.150.0130.00618.83
8.3.140.0090.00916.35
8.3.130.0080.00016.51
8.3.120.0090.00020.81
8.3.110.0030.00716.46
8.3.100.0070.00416.52
8.3.90.0070.00326.77
8.3.80.0090.00018.11
8.3.70.0070.00716.63
8.3.60.0120.00318.31
8.3.50.0150.00318.61
8.3.40.0030.01023.66
8.3.30.0150.00019.05
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.290.0080.01120.50
8.2.280.0040.00618.21
8.2.270.0140.00416.91
8.2.260.0070.01116.72
8.2.250.0130.00316.60
8.2.240.0060.00316.67
8.2.230.0130.00620.94
8.2.220.0130.00624.06
8.2.210.0100.00726.77
8.2.200.0090.00016.38
8.2.190.0040.01116.61
8.2.180.0090.00616.75
8.2.170.0070.00719.08
8.2.160.0100.00322.96
8.2.150.0100.00025.66
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00419.77
8.2.110.0070.00319.48
8.2.100.0300.00518.44
8.2.90.0290.00118.44
8.2.80.0250.00518.44
8.2.70.0260.00518.44
8.2.60.0210.00918.44
8.2.50.0240.00718.44
8.2.40.0250.00518.44
8.2.30.0230.00518.44
8.2.20.0210.00518.44
8.2.10.0190.00818.44
8.2.00.0200.00718.44
8.1.330.0090.01021.75
8.1.320.0120.00416.37
8.1.310.0070.01018.45
8.1.300.0120.00616.85
8.1.290.0070.00330.84
8.1.280.0090.00625.92
8.1.270.0110.00724.66
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0040.00422.86
8.1.230.0230.00718.44
8.1.220.0210.00518.44
8.1.210.0260.00318.44
8.1.200.0270.00118.44
8.1.190.0180.00918.44
8.1.180.0250.00418.44
8.1.170.0210.00618.44
8.1.160.0200.00618.44
8.1.150.0210.00718.44
8.1.140.0190.00918.44
8.1.130.0240.00818.44
8.1.120.0240.00318.44
8.1.110.0220.00618.44
8.1.100.0220.00418.44
8.1.90.0230.00518.44
8.1.80.0200.00718.44
8.1.70.0230.00318.44
8.1.60.0160.01018.44
8.1.50.0210.00318.44
8.1.40.0220.00318.44
8.1.30.0220.00518.44
8.1.20.0190.00518.44
8.1.10.0160.01118.44
8.1.00.0180.00518.44
8.0.300.0160.00518.46
8.0.290.0210.00318.44
8.0.280.0180.00818.44
8.0.270.0210.00518.44
8.0.260.0150.00918.44
8.0.250.0210.00818.44
8.0.240.0230.00318.44
8.0.230.0180.00618.44
8.0.220.0240.00218.44
8.0.210.0200.00718.44
8.0.200.0210.00518.44
8.0.190.0220.00318.44
8.0.180.0220.00518.44
8.0.170.0230.00418.44
8.0.160.0220.00518.44
8.0.150.0100.01218.44
8.0.140.0190.00518.44
8.0.130.0180.00418.44
8.0.120.0220.00418.44
8.0.110.0210.00518.44
8.0.100.0280.00018.44
8.0.90.0220.00418.44
8.0.80.0180.00718.44
8.0.70.0180.00818.44
8.0.60.0220.00318.44
8.0.50.0230.00318.44
8.0.30.0190.00618.44
8.0.20.0240.00218.44
8.0.10.0210.00318.44

preferences:
35.28 ms | 403 KiB | 5 Q