3v4l.org

run code in 300+ PHP versions simultaneously
<?php $prázdnyReťazec = ""; var_dump(empty($prázdnyReťazec)); // ...

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)
8.3.60.0100.00716.50
8.3.50.0060.01122.92
8.3.40.0070.00718.59
8.3.30.0110.00318.79
8.3.20.0090.00019.95
8.3.10.0000.00820.36
8.3.00.0070.00020.94
8.2.180.0120.00918.41
8.2.170.0100.00722.96
8.2.160.0100.01022.08
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0070.00726.16
8.2.120.0080.00021.00
8.2.110.0060.00322.23
8.2.100.0040.00817.78
8.2.90.0070.00020.61
8.2.80.0030.00517.97
8.2.70.0030.00617.93
8.2.60.0080.00018.03
8.2.50.0000.00818.10
8.2.40.0060.00319.66
8.2.30.0040.00419.43
8.2.20.0060.00317.51
8.2.10.0030.00517.89
8.2.00.0030.00517.68
8.1.280.0070.00725.92
8.1.270.0070.00024.66
8.1.260.0020.00526.35
8.1.250.0000.00728.09
8.1.240.0030.00624.03
8.1.230.0070.00420.97
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0060.00317.00
8.1.190.0040.00417.23
8.1.180.0090.00018.10
8.1.170.0060.00320.70
8.1.160.0040.00418.68
8.1.150.0040.00418.76
8.1.140.0000.00717.24
8.1.130.0000.00617.80
8.1.120.0030.00517.30
8.1.110.0050.00317.35
8.1.100.0000.00717.27
8.1.90.0030.00617.24
8.1.80.0020.00517.23
8.1.70.0000.00817.20
8.1.60.0050.00317.39
8.1.50.0000.00817.34
8.1.40.0030.00617.42
8.1.30.0000.00817.62
8.1.20.0060.00317.46
8.1.10.0050.00217.41
8.1.00.0000.00817.41
8.0.300.0000.00819.90
8.0.290.0000.00716.63
8.0.280.0050.00318.41
8.0.270.0000.00717.21
8.0.260.0080.00017.09
8.0.250.0030.00316.84
8.0.240.0030.00316.76
8.0.230.0040.00416.94
8.0.220.0030.00316.82
8.0.210.0000.00816.70
8.0.200.0070.00416.76
8.0.190.0000.00816.78
8.0.180.0040.00416.82
8.0.170.0000.00716.77
8.0.160.0080.00016.88
8.0.150.0040.00416.86
8.0.140.0040.00416.65
8.0.130.0080.00013.33
8.0.120.0060.00316.79
8.0.110.0030.00516.73
8.0.100.0030.00316.64
8.0.90.0030.00316.65
8.0.80.0110.00516.76
8.0.70.0050.00216.75
8.0.60.0000.00716.68
8.0.50.0030.00616.85
8.0.30.0110.00816.92
8.0.20.0120.00617.40
8.0.10.0000.00816.91
8.0.00.0080.00816.53
7.4.330.0000.00515.09
7.4.320.0000.00716.48
7.4.300.0000.00616.43
7.4.290.0070.00016.51
7.4.280.0040.00416.54
7.4.270.0030.00316.47
7.4.260.0000.00716.50
7.4.250.0000.00716.50
7.4.240.0020.00416.45
7.4.230.0060.00016.30
7.4.220.0120.00616.59
7.4.210.0090.00616.46
7.4.200.0000.00716.49
7.4.160.0090.00616.49
7.4.150.0120.00617.40
7.4.140.0110.01017.86
7.4.130.0080.00916.48
7.4.120.0100.00616.33
7.4.110.0040.01416.57
7.4.100.0060.01216.28
7.4.90.0110.00616.37
7.4.80.0140.01119.39
7.4.70.0060.01116.36
7.4.60.0070.01716.40
7.4.50.0020.00516.40
7.4.40.0090.00916.17
7.4.30.0070.01416.52
7.4.00.0040.01414.70
7.3.330.0060.00012.98
7.3.320.0000.00512.97
7.3.310.0070.00015.96
7.3.300.0030.00315.96
7.3.290.0060.00916.16
7.3.280.0080.00916.11
7.3.270.0090.00917.40
7.3.260.0070.01016.18
7.3.250.0090.01116.16
7.3.240.0140.00316.13
7.3.230.0120.00616.39
7.3.210.0060.01216.35
7.3.200.0060.01519.39
7.3.190.0160.00316.22
7.3.180.0130.00716.09
7.3.170.0170.00316.43
7.3.160.0070.01016.51
7.3.10.0030.01016.13
7.3.00.0030.01316.31
7.2.330.0140.00316.43
7.2.320.0030.01216.51
7.2.310.0070.01416.62
7.2.300.0000.01716.34
7.2.290.0040.01316.66
7.2.130.0040.00416.33
7.2.120.0070.00716.75
7.2.110.0040.00816.41
7.2.100.0120.00416.72
7.2.90.0090.00916.88
7.2.80.0160.00016.73
7.2.70.0000.00916.77
7.2.60.0060.00916.83
7.2.50.0100.00316.46
7.2.40.0000.01116.46
7.2.30.0100.00716.66
7.2.20.0070.00316.68
7.2.10.0030.01016.85
7.2.00.0050.00517.72
7.1.250.0000.00815.37
7.1.200.0130.00415.32
7.1.100.0070.01118.17
7.1.70.0030.00617.19
7.1.60.0030.02119.34
7.1.50.0100.01016.76
7.1.00.0070.07322.43
7.0.200.0040.00416.55
7.0.140.0000.06722.00
7.0.60.0170.06721.63
7.0.50.0070.08017.74
7.0.40.0030.08020.29
7.0.30.0330.07320.09
7.0.20.0270.05320.30
7.0.10.0200.04320.18
7.0.00.0030.09320.00
5.6.280.0070.06720.89
5.6.210.0070.08020.64
5.6.200.0270.03318.22
5.6.190.0030.04720.35
5.6.180.0330.03720.56
5.6.170.0300.05320.37
5.6.160.0100.05320.70
5.6.150.0070.04318.21
5.6.140.0170.07018.22
5.6.130.0070.08318.18
5.6.120.0030.06321.14
5.6.110.0030.08720.93
5.6.100.0070.08020.99
5.6.90.0030.04021.02
5.6.80.0100.04720.41
5.5.350.0130.04320.28
5.5.340.0100.08018.02
5.5.330.0030.08720.36
5.5.320.0300.08020.11
5.5.310.0270.07720.21
5.5.300.0070.06318.02
5.5.290.0100.08017.98
5.5.280.0100.05720.79
5.5.270.0070.09320.96
5.5.260.0030.04020.88
5.5.250.0070.08720.79
5.5.240.0330.06320.14
5.4.450.0170.03337.91
5.4.440.0100.04037.91
5.4.430.0430.04737.90
5.4.420.0170.04719.64
5.4.410.0100.05718.85
5.4.400.0170.05318.72
5.4.390.0070.05718.53
5.4.380.0070.06018.68
5.4.370.0100.05318.68
5.4.360.0070.06018.46
5.4.350.0230.04313.68
5.4.340.0200.05013.83
5.4.320.0170.05714.14
5.4.310.0200.05014.16
5.4.300.0100.05314.31
5.4.290.0330.05014.18
5.4.280.0230.04314.05
5.4.270.0370.04314.16
5.4.260.0170.05314.20
5.4.250.0230.05014.09
5.4.240.0170.05314.02
5.4.230.0270.04014.03
5.4.220.0230.04314.01
5.4.210.0270.04014.05
5.4.200.0230.04714.10
5.4.190.0170.05014.10
5.4.180.0170.05014.19
5.4.170.0300.04014.21
5.4.160.0270.04014.06
5.4.150.0400.02714.07
5.4.140.0200.05713.77
5.4.130.0200.04713.70
5.4.120.0170.05013.71
5.4.110.0030.06313.71
5.4.100.0270.03313.70
5.4.90.0200.04713.65
5.4.80.0170.05013.65
5.4.70.0200.05013.82
5.4.60.0130.06313.70
5.4.50.0100.04713.77
5.4.40.0030.05313.65
5.4.30.0030.05013.80
5.4.20.0100.04713.71
5.4.10.0170.05013.69
5.4.00.0200.04313.32
5.3.290.0130.05014.57
5.3.280.0130.04314.60
5.3.270.0130.05014.61
5.3.260.0100.05014.52
5.3.250.0130.04714.49
5.3.240.0070.05314.52
5.3.230.0030.05714.61
5.3.220.0130.04714.47
5.3.210.0100.05314.56
5.3.200.0100.05314.60
5.3.190.0070.05314.46
5.3.180.0070.04714.46
5.3.170.0100.04014.45
5.3.160.0130.03714.43
5.3.150.0000.04714.48
5.3.140.0100.04314.47
5.3.130.0130.05014.50
5.3.120.0100.05014.41
5.3.110.0100.05014.59
5.3.100.0130.04313.92
5.3.90.0130.04314.07
5.3.80.0100.04313.86
5.3.70.0130.04013.89
5.3.60.0170.03713.98
5.3.50.0130.04013.94
5.3.40.0030.05013.79
5.3.30.0030.05013.82
5.3.20.0200.03313.57
5.3.10.0100.04313.49
5.3.00.0130.04313.48
5.2.170.0070.04011.07
5.2.160.0230.02311.23
5.2.150.0070.04011.13
5.2.140.0030.04311.10
5.2.130.0100.03711.07
5.2.120.0100.03311.19
5.2.110.0070.03711.07
5.2.100.0030.04311.06
5.2.90.0000.04711.10
5.2.80.0130.03711.06
5.2.70.0130.03711.18
5.2.60.0170.03310.95
5.2.50.0000.04711.11
5.2.40.0100.03311.04
5.2.30.0030.04310.82
5.2.20.0170.02711.06
5.2.10.0070.03710.94
5.2.00.0030.04310.80
5.1.60.0100.02710.04
5.1.50.0030.03310.05
5.1.40.0030.0379.94
5.1.30.0030.03710.28
5.1.20.0070.03310.38
5.1.10.0130.0239.98
5.1.00.0070.03010.13
5.0.50.0070.0238.56
5.0.40.0030.0278.35
5.0.30.0000.0438.33
5.0.20.0000.0278.13
5.0.10.0000.0308.21
5.0.00.0030.0378.11
4.4.90.0070.0235.83
4.4.80.0030.0205.84
4.4.70.0000.0175.82
4.4.60.0000.0235.78
4.4.50.0070.0175.81
4.4.40.0000.0335.87
4.4.30.0030.0205.81
4.4.20.0000.0235.88
4.4.10.0000.0235.88
4.4.00.0000.0335.87
4.3.110.0030.0205.79
4.3.100.0000.0235.86
4.3.90.0070.0175.72
4.3.80.0000.0305.77
4.3.70.0070.0105.71
4.3.60.0030.0175.76
4.3.50.0030.0205.83
4.3.40.0030.0235.72
4.3.30.0000.0174.50
4.3.20.0000.0174.58
4.3.10.0070.0104.43
4.3.00.0100.01337.85

preferences:
62.58 ms | 401 KiB | 5 Q