3v4l.org

run code in 300+ PHP versions simultaneously
<?php $float = 0.0000000038; echo "$float\n"; $str = (string)$float; echo "$str\n"; $n_dec = strlen(substr(strrch($str, '.'), 1)); echo "$n_dec\n"; echo number_format($float, $n_dec), "\n";

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)
8.3.60.0130.00718.41
8.3.50.0100.01017.93
8.3.40.0090.00618.70
8.3.30.0070.00720.16
8.3.20.0030.00620.09
8.3.10.0040.00422.02
8.3.00.0080.00022.44
8.2.180.0060.01216.63
8.2.170.0140.00022.96
8.2.160.0120.00322.31
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0080.00020.73
8.2.110.0030.00722.07
8.2.100.0110.00018.03
8.2.90.0000.00819.17
8.2.80.0040.00419.32
8.2.70.0060.00317.63
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0030.00519.91
8.2.30.0000.00719.30
8.2.20.0050.00317.69
8.2.10.0050.00317.86
8.2.00.0060.00317.84
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0080.00023.96
8.1.230.0080.00319.04
8.1.220.0030.00617.77
8.1.210.0000.00918.77
8.1.200.0030.00617.35
8.1.190.0080.00017.39
8.1.180.0040.00418.89
8.1.170.0030.00618.46
8.1.160.0040.00418.77
8.1.150.0000.00718.57
8.1.140.0000.00717.37
8.1.130.0070.00017.73
8.1.120.0000.00717.29
8.1.110.0000.01017.43
8.1.100.0030.00517.32
8.1.90.0030.00617.35
8.1.80.0000.00717.40
8.1.70.0040.00417.39
8.1.60.0060.00317.46
8.1.50.0080.00017.43
8.1.40.0020.00517.49
8.1.30.0000.00717.56
8.1.20.0000.00817.66
8.1.10.0040.00417.42
8.1.00.0040.00417.35
8.0.300.0000.00718.77
8.0.290.0040.00416.93
8.0.280.0000.00718.43
8.0.270.0050.00317.25
8.0.260.0000.00616.74
8.0.250.0000.00717.00
8.0.240.0040.00417.00
8.0.230.0000.00716.98
8.0.220.0080.00016.83
8.0.210.0000.00716.95
8.0.200.0030.00317.00
8.0.190.0040.00417.07
8.0.180.0040.00416.98
8.0.170.0080.00016.94
8.0.160.0040.00417.01
8.0.150.0040.00416.89
8.0.140.0040.00416.73
8.0.130.0000.00513.32
8.0.120.0040.00416.88
8.0.110.0020.00516.99
8.0.100.0030.00517.00
8.0.90.0070.00016.98
8.0.80.0030.01216.82
8.0.70.0000.00716.83
8.0.60.0000.00716.76
8.0.50.0080.00017.00
8.0.30.0140.00517.01
8.0.20.0110.00717.40
8.0.10.0040.00416.99
8.0.00.0110.00716.75
7.4.330.0030.00315.00
7.4.320.0000.00716.54
7.4.300.0030.00316.50
7.4.290.0000.00716.54
7.4.280.0100.00016.56
7.4.270.0000.01016.35
7.4.260.0030.00313.30
7.4.250.0040.00416.54
7.4.240.0030.00316.57
7.4.230.0000.00716.42
7.4.220.0080.01316.66
7.4.210.0070.00916.49
7.4.200.0000.00716.53
7.4.190.0040.00416.67
7.4.160.0070.01016.45
7.4.150.0090.01017.40
7.4.140.0130.00517.86
7.4.130.0110.00916.54
7.4.120.0080.00916.56
7.4.110.0030.01416.41
7.4.100.0120.01216.36
7.4.90.0100.01016.68
7.4.80.0040.01519.39
7.4.70.0120.00616.34
7.4.60.0130.00316.61
7.4.50.0060.00316.62
7.4.40.0070.00722.77
7.4.30.0070.01016.43
7.4.00.0070.01015.24
7.3.330.0000.00513.11
7.3.320.0000.00513.25
7.3.310.0070.00016.26
7.3.300.0030.00316.30
7.3.290.0040.01116.34
7.3.280.0050.01016.35
7.3.270.0130.01017.40
7.3.260.0130.00616.33
7.3.250.0090.00916.46
7.3.240.0140.00316.37
7.3.230.0030.01316.49
7.3.210.0100.00616.42
7.3.200.0120.00619.39
7.3.190.0070.01416.42
7.3.180.0080.00816.49
7.3.170.0030.01316.45
7.3.160.0100.00716.42
7.3.120.0120.00314.87
7.2.330.0160.00316.23
7.2.320.0180.00416.37
7.2.310.0100.00616.32
7.2.300.0090.00816.49
7.2.290.0120.01116.63
7.2.110.0060.01316.13
7.2.100.0130.00316.36
7.2.90.0120.00316.63
7.2.80.0100.00516.68
7.2.70.0070.01116.98
7.2.60.0090.00716.68
7.2.50.0030.00916.86
7.2.40.0060.00316.96
7.2.30.0000.01516.86
7.2.20.0090.00616.79
7.2.10.0070.00716.91
7.2.00.0050.00918.09
7.1.230.0090.00615.77
7.1.220.0110.00715.50
7.1.210.0180.00315.52
7.1.200.0090.00715.51
7.1.190.0050.01015.29
7.1.180.0110.00715.62
7.1.170.0040.00815.74
7.1.160.0070.00715.79
7.1.150.0040.01115.65
7.1.140.0050.00415.33
7.1.130.0030.00615.50
7.1.120.0030.00615.66
7.1.110.0030.00515.83
7.1.100.0060.00516.85
7.1.90.0120.00015.66
7.1.80.0100.00315.81
7.1.70.0030.00816.22
7.1.60.0070.00917.64
7.1.50.0150.00716.43
7.1.40.0070.01015.76
7.1.30.0030.01415.79
7.1.20.0110.00715.58
7.1.10.0030.00815.64
7.1.00.0070.03019.14
7.0.310.0000.01415.42
7.0.300.0040.01115.38
7.0.290.0080.00315.35
7.0.280.0030.00515.38
7.0.270.0060.00315.12
7.0.260.0000.01215.37
7.0.250.0070.00315.38
7.0.240.0100.00315.45
7.0.230.0090.00315.31
7.0.220.0060.00615.34
7.0.210.0040.00815.41
7.0.200.0040.00815.99
7.0.190.0060.00615.04
7.0.180.0000.01115.41
7.0.170.0090.00315.38
7.0.160.0040.00715.31
7.0.150.0000.01115.27
7.0.140.0000.04518.57
7.0.130.0080.00015.55
7.0.120.0080.00615.52
7.0.110.0030.00615.30
7.0.100.0100.02617.77
7.0.90.0130.04517.63
7.0.80.0100.03317.73
7.0.70.0070.04017.63
7.0.60.0110.04617.50
7.0.50.0120.02517.79
7.0.40.0100.04116.68
7.0.30.0050.04516.86
7.0.20.0080.04716.76
7.0.10.0050.04416.79
7.0.00.0050.02816.67
5.6.380.0130.00714.48
5.6.370.0130.00014.19
5.6.360.0170.00014.34
5.6.350.0130.00314.39
5.6.340.0130.00813.97
5.6.330.0030.01414.23
5.6.320.0120.00414.09
5.6.310.0100.00714.52
5.6.300.0160.00014.38
5.6.290.0100.00714.32
5.6.280.0040.04117.67
5.6.270.0160.00014.29
5.6.260.0160.00014.26
5.6.250.0090.04217.38
5.6.240.0100.04317.43
5.6.230.0090.02517.59
5.6.220.0090.03017.46
5.6.210.0080.03917.43
5.6.200.0150.02017.57
5.6.190.0090.03817.76
5.6.180.0100.04817.74
5.6.170.0120.02717.53
5.6.160.0090.04517.73
5.6.150.0090.04317.50
5.6.140.0100.02817.79
5.6.130.0100.04217.65
5.6.120.0120.02017.53
5.6.110.0140.03017.56
5.6.100.0110.03817.71
5.6.90.0140.03817.60
5.6.80.0050.04317.25
5.6.70.0150.03017.20
5.6.60.0090.03917.28
5.6.50.0070.02717.33
5.6.40.0060.02317.22
5.6.30.0080.02017.25
5.6.20.0030.02117.36
5.6.10.0060.02117.35
5.6.00.0070.02117.29
5.5.380.0070.04216.56
5.5.370.0090.04216.56
5.5.360.0070.04016.58
5.5.350.0050.04916.59
5.5.340.0060.02716.78
5.5.330.0100.04016.79
5.5.320.0120.02116.69
5.5.310.0080.04516.79
5.5.300.0030.03216.83
5.5.290.0070.02216.77
5.5.280.0080.02916.77
5.5.270.0100.02016.78
5.5.260.0030.02816.79
5.5.250.0040.03216.75
5.5.240.0050.02916.53
5.5.230.0100.04216.54
5.5.220.0070.02516.52
5.5.210.0060.02216.48
5.5.200.0040.02216.46
5.5.190.0110.02016.49
5.5.180.0040.02516.39
5.5.170.0110.00514.23
5.5.160.0070.01916.52
5.5.150.0090.02016.46
5.5.140.0070.02116.51
5.5.130.0040.02516.53
5.5.120.0100.01816.48
5.5.110.0050.02316.50
5.5.100.0050.02516.41
5.5.90.0110.01516.43
5.5.80.0060.02916.48
5.5.70.0090.02016.39
5.5.60.0080.02016.43
5.5.50.0040.02116.39
5.5.40.0050.02216.37
5.5.30.0120.02316.46
5.5.20.0090.02316.46
5.5.10.0090.03016.42
5.5.00.0100.02016.40
5.4.450.0090.03516.09
5.4.440.0080.04016.07
5.4.430.0090.04016.08
5.4.420.0060.04616.11
5.4.410.0090.03916.03
5.4.400.0030.04315.96
5.4.390.0070.04015.92
5.4.380.0070.03115.88
5.4.370.0090.02015.79
5.4.360.0080.02115.81
5.4.350.0050.02115.96
5.4.340.0060.01915.79
5.4.330.0110.00412.79
5.4.320.0140.01315.96
5.4.310.0050.02415.91
5.4.300.0120.01715.85
5.4.290.0090.01615.88
5.4.280.0090.02015.78
5.4.270.0060.02115.79
5.4.260.0050.02215.93
5.4.250.0120.03315.91
5.4.240.0060.02015.93
5.4.230.0080.01815.91
5.4.220.0100.01715.86
5.4.210.0060.02015.89
5.4.200.0090.01915.87
5.4.190.0090.01515.93
5.4.180.0050.02415.93
5.4.170.0070.02515.90
5.4.160.0050.02015.87
5.4.150.0070.02115.79
5.4.140.0060.01914.53
5.4.130.0050.02014.53
5.4.120.0080.01514.56
5.4.110.0100.01714.60
5.4.100.0080.01814.58
5.4.90.0040.02414.50
5.4.80.0070.01814.54
5.4.70.0080.01814.60
5.4.60.0060.02114.58
5.4.50.0050.01814.53
5.4.40.0050.02014.54
5.4.30.0060.03614.54
5.4.20.0070.01814.51
5.4.10.0120.01314.49
5.4.00.0050.03814.30
5.3.290.0100.01513.65
5.3.280.0050.02213.61
5.3.270.0060.01813.68
5.3.260.0060.02013.68
5.3.250.0030.01813.66
5.3.240.0090.01813.67
5.3.230.0040.02113.69
5.3.220.0080.01613.64
5.3.210.0080.01713.63
5.3.200.0060.01813.66
5.3.190.0040.01913.60
5.3.180.0050.02213.67
5.3.170.0030.02213.59
5.3.160.0040.01913.67
5.3.150.0030.02213.66
5.3.140.0090.01313.62
5.3.130.0090.03513.58
5.3.120.0080.02113.67
5.3.110.0050.02513.66
5.3.100.0080.03513.37
5.3.90.0040.02513.38
5.3.80.0060.03513.39
5.3.70.0070.03713.28
5.3.60.0050.03913.39
5.3.50.0110.01513.30
5.3.40.0080.04013.28
5.3.30.0080.01813.33
5.3.20.0090.02813.22
5.3.10.0050.01913.21
5.3.00.0030.03013.21
5.2.170.0020.02013.21
5.2.160.0080.02913.21
5.2.150.0070.02413.21
5.2.140.0060.01513.21
5.2.130.0040.03413.21
5.2.120.0060.03113.21
5.2.110.0020.03113.21
5.2.100.0040.03213.21
5.2.90.0040.02613.21
5.2.80.0050.01513.21
5.2.70.0040.01813.21
5.2.60.0020.01813.21
5.2.50.0050.01213.21
5.2.40.0000.03013.21
5.2.30.0080.01313.21
5.2.20.0020.03713.21
5.2.10.0070.01213.21
5.2.00.0050.01513.21
5.1.60.0000.03013.21
5.1.50.0070.02213.21
5.1.40.0090.01813.21
5.1.30.0050.01713.21
5.1.20.0050.01613.21
5.1.10.0030.02313.21
5.1.00.0090.01313.21
5.0.50.0040.01413.21
5.0.40.0070.01813.21
5.0.30.0070.02113.21
5.0.20.0020.02713.21
5.0.10.0030.02513.21
5.0.00.0050.02313.21
4.4.90.0030.00913.21
4.4.80.0050.01813.21
4.4.70.0040.00913.21
4.4.60.0020.01013.21
4.4.50.0000.01413.21
4.4.40.0060.02213.21
4.4.30.0020.01213.21
4.4.20.0050.01913.21
4.4.10.0030.01013.21
4.4.00.0020.01513.21
4.3.110.0030.01113.21
4.3.100.0000.01613.21
4.3.90.0040.02013.21
4.3.80.0030.03113.21
4.3.70.0020.01713.21
4.3.60.0020.01213.21
4.3.50.0040.01113.21
4.3.40.0030.01713.21
4.3.30.0020.01913.21
4.3.20.0050.01713.21
4.3.10.0030.01913.21
4.3.00.0030.01313.21

preferences:
74.24 ms | 400 KiB | 5 Q