3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = "1еуые"; var_dump(empty($var['0']));

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)
8.3.60.0140.00718.18
8.3.50.0130.00621.14
8.3.40.0110.00418.74
8.3.30.0100.00720.20
8.3.20.0000.00820.49
8.3.10.0030.00620.96
8.3.00.0080.00023.66
8.2.180.0100.01016.50
8.2.170.0110.00422.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0050.00321.05
8.2.110.0030.00719.27
8.2.100.0000.01117.72
8.2.90.0040.00418.95
8.2.80.0040.00419.39
8.2.70.0080.00017.36
8.2.60.0000.00817.92
8.2.50.0080.00018.07
8.2.40.0000.00818.28
8.2.30.0000.00719.43
8.2.20.0000.00817.75
8.2.10.0000.00917.64
8.2.00.0000.00717.71
8.1.280.0090.00625.92
8.1.270.0070.00023.99
8.1.260.0100.00326.35
8.1.250.0040.00428.09
8.1.240.0030.01817.64
8.1.230.0040.00820.89
8.1.220.0030.00518.77
8.1.210.0040.00418.85
8.1.200.0030.00617.23
8.1.190.0030.00617.29
8.1.180.0000.00818.10
8.1.170.0040.00418.24
8.1.160.0020.00518.73
8.1.150.0000.00718.47
8.1.140.0000.00817.30
8.1.130.0030.00317.81
8.1.120.0080.00017.37
8.1.110.0000.00717.30
8.1.100.0030.00517.34
8.1.90.0000.00717.34
8.1.80.0000.00717.22
8.1.70.0030.00317.41
8.1.60.0000.00717.50
8.1.50.0040.00417.33
8.1.40.0030.00517.43
8.1.30.0000.00717.63
8.1.20.0060.00317.49
8.1.10.0040.00417.57
8.1.00.0020.00517.49
8.0.300.0000.00719.89
8.0.290.0060.00317.03
8.0.280.0030.00518.43
8.0.270.0040.00717.10
8.0.260.0000.00616.63
8.0.250.0070.00016.80
8.0.240.0000.00716.78
8.0.230.0000.00716.94
8.0.220.0030.00316.79
8.0.210.0030.00316.71
8.0.200.0000.00616.77
8.0.190.0090.00016.87
8.0.180.0050.00216.90
8.0.170.0000.00716.73
8.0.160.0040.00316.88
8.0.150.0000.00716.69
8.0.140.0060.00316.71
8.0.130.0000.00613.29
8.0.120.0040.00416.79
8.0.110.0000.00716.73
8.0.100.0040.00316.86
8.0.90.0000.00816.64
8.0.80.0100.00616.75
8.0.70.0000.00716.86
8.0.60.0050.00316.73
8.0.50.0050.00216.60
8.0.30.0130.00917.07
8.0.20.0130.00817.40
8.0.10.0000.00716.79
8.0.00.0140.00416.42
7.4.330.0000.00516.76
7.4.320.0030.00316.44
7.4.300.0000.00616.52
7.4.290.0000.00716.32
7.4.280.0040.00416.56
7.4.270.0050.00316.57
7.4.260.0050.00013.18
7.4.250.0000.00716.33
7.4.240.0000.00716.44
7.4.230.0000.00716.07
7.4.220.0060.01016.30
7.4.210.0080.00616.49
7.4.200.0030.00316.64
7.4.190.0080.00016.40
7.4.160.0040.01516.44
7.4.150.0000.01817.40
7.4.140.0160.00517.86
7.4.130.0140.00616.33
7.4.120.0070.01016.36
7.4.110.0100.00716.24
7.4.100.0140.01016.40
7.4.90.0070.01016.40
7.4.80.0110.00719.39
7.4.70.0120.01216.40
7.4.60.0110.00416.42
7.4.50.0030.00316.53
7.4.40.0090.00622.77
7.4.30.0000.01716.54
7.4.00.0000.01514.77
7.3.330.0000.00513.08
7.3.320.0000.00513.08
7.3.310.0000.00616.20
7.3.300.0030.00316.17
7.3.290.0000.01616.16
7.3.280.0060.01116.16
7.3.270.0130.00617.40
7.3.260.0090.00918.24
7.3.250.0070.01016.44
7.3.240.0060.00916.08
7.3.230.0140.00716.39
7.3.210.0060.00916.20
7.3.200.0100.00719.39
7.3.190.0070.01016.34
7.3.180.0040.01116.25
7.3.170.0040.01116.27
7.3.160.0110.00416.30
7.3.120.0000.01514.77
7.2.330.0060.01316.61
7.2.320.0130.00916.57
7.2.310.0160.01916.49
7.2.300.0140.00916.47
7.2.290.0060.01116.34
7.1.70.0000.00717.07
7.1.60.0090.01519.17
7.1.50.0130.01016.89
7.1.00.0030.03322.35
7.0.200.0060.00316.63
7.0.140.0030.07022.16
7.0.80.0070.07719.95
7.0.70.0300.08319.82
7.0.60.0370.08019.90
7.0.50.0370.08020.38
7.0.40.0030.06020.15
7.0.30.0030.08320.00
7.0.20.0030.07720.07
7.0.10.0130.07320.18
7.0.00.0130.08319.98
5.6.280.0000.07720.88
5.6.230.0100.08020.53
5.6.220.0070.08320.60
5.6.210.0100.06720.65
5.6.200.0070.06721.06
5.6.190.0030.08721.03
5.6.180.0030.06321.09
5.6.170.0170.07721.01
5.6.160.0030.08021.16
5.6.150.0170.05020.95
5.6.140.0100.04021.03
5.6.130.0000.08720.95
5.6.120.0000.07021.04
5.6.110.0030.05320.91
5.6.100.0030.05020.92
5.6.90.0030.09021.07
5.6.80.0030.05720.41
5.6.70.0100.04320.39
5.6.60.0070.05720.38
5.6.50.0070.08020.37
5.6.40.0130.07720.36
5.6.30.0030.06320.34
5.6.20.0070.08020.45
5.6.10.0130.07320.39
5.6.00.0100.08020.35
5.5.370.0030.08720.39
5.5.360.0100.07020.33
5.5.350.0100.07320.35
5.5.340.0030.05020.82
5.5.330.0030.06020.80
5.5.320.0200.07020.80
5.5.310.0100.05720.63
5.5.300.0030.08020.82
5.5.290.0130.04720.63
5.5.280.0030.07320.82
5.5.270.0070.05020.80
5.5.260.0070.04020.74
5.5.250.0070.08020.44
5.5.240.0130.07320.18
5.5.230.0070.08720.17
5.5.220.0170.07020.20
5.5.210.0100.07720.29
5.5.200.0130.05020.12
5.5.190.0030.07719.98
5.5.180.0130.07720.17
5.5.160.0100.07020.14
5.5.150.0070.04320.09
5.5.140.0070.07720.20
5.5.130.0200.03720.20
5.5.120.0070.05720.12
5.5.110.0030.08320.16
5.5.100.0100.07720.16
5.5.90.0070.08020.05
5.5.80.0030.08019.96
5.5.70.0070.06320.02
5.5.60.0170.06320.05
5.5.50.0170.07020.07
5.5.40.0070.04019.93
5.5.30.0070.06320.07
5.5.20.0130.07319.98
5.5.10.0000.07720.07
5.5.00.0100.07020.12
5.4.450.0070.07719.11
5.4.440.0100.07319.11
5.4.430.0030.07719.35
5.4.420.0070.08019.46
5.4.410.0130.07019.18
5.4.400.0030.05019.05
5.4.390.0100.07019.06
5.4.380.0100.07718.81
5.4.370.0070.05019.20
5.4.360.0070.06318.90
5.4.350.0130.04318.98
5.4.340.0100.07018.80
5.4.320.0100.08319.09
5.4.310.0070.05318.92
5.4.300.0100.07318.97
5.4.290.0100.04719.22
5.4.280.0130.07319.11
5.4.270.0100.03318.81
5.4.260.0070.07018.91
5.4.250.0130.07718.80
5.4.240.0000.08018.77
5.4.230.0100.07319.02
5.4.220.0030.07319.11
5.4.210.0030.06019.00
5.4.200.0030.06319.09
5.4.190.0170.06018.96
5.4.180.0130.07018.93
5.4.170.0070.07719.00
5.4.160.0070.07318.94
5.4.150.0100.04019.03
5.4.140.0170.06316.23
5.4.130.0070.03716.27
5.4.120.0070.05716.25
5.4.110.0100.06716.22
5.4.100.0000.04016.32
5.4.90.0030.03716.44
5.4.80.0070.03016.34
5.4.70.0070.03316.24
5.4.60.0070.07016.28
5.4.50.0030.04016.35
5.4.40.0100.07016.29
5.4.30.0100.06716.18
5.4.20.0030.04316.29
5.4.10.0130.07316.28
5.4.00.0070.07015.65
5.3.290.0100.06714.66
5.3.280.0000.08314.45
5.3.270.0130.04314.56
5.3.260.0000.04714.59
5.3.250.0170.07014.60
5.3.240.0070.05714.45
5.3.230.0030.08314.58
5.3.220.0000.07714.57
5.3.210.0070.03714.41
5.3.200.0000.05014.55
5.3.190.0070.07014.54
5.3.180.0070.04314.47
5.3.170.0030.03714.55
5.3.160.0030.04014.50
5.3.150.0030.05314.54
5.3.140.0030.04014.52
5.3.130.0070.04014.55
5.3.120.0070.07314.54
5.3.110.0070.07014.52
5.3.100.0030.07014.04
5.3.90.0030.04314.00
5.3.80.0130.06314.00
5.3.70.0030.05013.98
5.3.60.0170.06014.00
5.3.50.0070.07013.79
5.3.40.0030.07313.94
5.3.30.0100.06313.89
5.3.20.0130.06313.64
5.3.10.0030.07313.50
5.3.00.0070.04013.63
5.2.170.0070.03013.49
5.2.160.0030.06313.49
5.2.150.0000.04713.49
5.2.140.0000.04313.49
5.2.130.0070.06313.49
5.2.120.0070.05713.49
5.2.110.0030.06013.49
5.2.100.0070.06013.49
5.2.90.0100.06013.49
5.2.80.0070.06013.49
5.2.70.0100.05313.49
5.2.60.0130.05313.49
5.2.50.0030.06313.49
5.2.40.0030.06313.49
5.2.30.0100.05713.49
5.2.20.0070.05313.49
5.2.10.0030.06313.49
5.2.00.0070.06313.49
5.1.60.0030.04013.49
5.1.50.0030.05713.49
5.1.40.0030.05313.49
5.1.30.0030.04013.49
5.1.20.0030.04313.49
5.1.10.0030.06013.49
5.1.00.0070.05013.49
5.0.50.0100.03713.49
5.0.40.0030.04013.49
5.0.30.0030.05713.49
5.0.20.0000.03713.49
5.0.10.0000.03713.49
5.0.00.0070.06713.49
4.4.90.0000.02313.49
4.4.80.0000.03313.49
4.4.70.0030.03313.49
4.4.60.0000.03713.49
4.4.50.0030.03313.49
4.4.40.0030.04713.49
4.4.30.0000.03013.49
4.4.20.0000.03313.49
4.4.10.0070.02013.49
4.4.00.0000.06013.49
4.3.110.0000.02713.49
4.3.100.0030.03313.49
4.3.90.0030.02313.49
4.3.80.0000.04013.49
4.3.70.0030.03313.49
4.3.60.0070.02013.49
4.3.50.0070.03313.49
4.3.40.0000.05313.49
4.3.30.0000.03713.49
4.3.20.0030.02313.49
4.3.10.0000.03313.49
4.3.00.0000.02313.49

preferences:
47.72 ms | 401 KiB | 5 Q