3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mystring = "null"; $arr = get_defined_vars(); echo in_array('mystring',$arr['mystring']);

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)
8.3.40.0090.01218.80
8.3.30.0070.00719.13
8.3.20.0000.00919.98
8.3.10.0070.00023.71
8.3.00.0000.00819.51
8.2.170.0060.00922.96
8.2.160.0030.01020.35
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0040.00422.30
8.2.110.0030.00622.25
8.2.100.0120.00017.91
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0060.00317.60
8.2.60.0080.00317.93
8.2.50.0030.00718.07
8.2.40.0050.00319.95
8.2.30.0000.00718.02
8.2.20.0070.00017.79
8.2.10.0040.00418.17
8.2.00.0070.00017.70
8.1.270.0040.00423.79
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0000.01123.75
8.1.230.0070.00419.04
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0080.00017.23
8.1.190.0080.00417.13
8.1.180.0050.00318.10
8.1.170.0030.00618.43
8.1.160.0040.00421.97
8.1.150.0030.00718.53
8.1.140.0000.00717.34
8.1.130.0030.00317.74
8.1.120.0000.00717.41
8.1.110.0030.00517.36
8.1.100.0000.00817.37
8.1.90.0000.00717.42
8.1.80.0050.00317.28
8.1.70.0030.00317.34
8.1.60.0090.00317.55
8.1.50.0040.00417.52
8.1.40.0000.00717.39
8.1.30.0040.00417.36
8.1.20.0000.00817.60
8.1.10.0000.00717.45
8.1.00.0040.00417.39
8.0.300.0070.00018.77
8.0.290.0000.00817.05
8.0.280.0070.00018.38
8.0.270.0040.00417.17
8.0.260.0030.00317.19
8.0.250.0030.00317.00
8.0.240.0050.00316.94
8.0.230.0070.00016.99
8.0.220.0030.00316.91
8.0.210.0000.00716.77
8.0.200.0060.00016.84
8.0.190.0060.00316.91
8.0.180.0030.00316.89
8.0.170.0070.00016.95
8.0.160.0050.00216.80
8.0.150.0000.00816.73
8.0.140.0040.00416.84
8.0.130.0000.00613.36
8.0.120.0040.00416.77
8.0.110.0040.00416.78
8.0.100.0000.00716.83
8.0.90.0070.00016.86
8.0.80.0090.00616.87
8.0.70.0040.00416.68
8.0.60.0000.00716.90
8.0.50.0000.00716.77
8.0.30.0140.00717.11
8.0.20.0070.01317.40
8.0.10.0050.00216.81
8.0.00.0050.01416.61
7.4.330.0000.00515.08
7.4.320.0000.00616.40
7.4.300.0030.00316.50
7.4.290.0000.00716.52
7.4.280.0030.00516.48
7.4.270.0070.00016.55
7.4.260.0000.00716.38
7.4.250.0000.00716.41
7.4.240.0000.00716.50
7.4.230.0060.00016.34
7.4.220.0090.00916.48
7.4.210.0070.00916.53
7.4.200.0030.00316.50
7.4.190.0040.00416.69
7.4.160.0060.01016.37
7.4.150.0030.01317.40
7.4.140.0080.01117.86
7.4.130.0100.00816.37
7.4.120.0090.00916.48
7.4.110.0100.00816.39
7.4.100.0110.00716.41
7.4.90.0070.01016.59
7.4.80.0130.00319.39
7.4.70.0080.01616.63
7.4.60.0130.00316.44
7.4.50.0000.00816.32
7.4.40.0150.00616.75
7.4.30.0060.01216.31
7.4.10.0060.01114.81
7.4.00.0100.00714.94
7.3.330.0000.00613.00
7.3.320.0000.00513.24
7.3.310.0070.00016.33
7.3.300.0070.00016.29
7.3.290.0110.00316.24
7.3.280.0130.00416.25
7.3.270.0070.01017.40
7.3.260.0000.01716.39
7.3.250.0130.00616.42
7.3.240.0100.00716.29
7.3.230.0030.01416.39
7.3.210.0120.00616.31
7.3.200.0110.00719.39
7.3.190.0030.01916.31
7.3.180.0180.00316.21
7.3.170.0060.01016.45
7.3.160.0080.00816.42
7.3.130.0070.01214.87
7.3.120.0080.01014.67
7.3.110.0090.00914.70
7.3.100.0060.01014.83
7.3.90.0050.01014.79
7.3.80.0090.00314.77
7.3.70.0070.00714.72
7.3.60.0040.00814.88
7.3.50.0100.00314.68
7.3.40.0050.00714.68
7.3.30.0080.00314.82
7.3.20.0080.00416.52
7.3.10.0100.00416.65
7.3.00.0050.00716.56
7.2.330.0110.01416.77
7.2.320.0150.00616.43
7.2.310.0070.01316.56
7.2.300.0130.00316.75
7.2.290.0100.00716.44
7.2.260.0090.00914.98
7.2.250.0040.01415.04
7.2.240.0060.00714.98
7.2.230.0050.01114.99
7.2.220.0040.01014.86
7.2.210.0040.00814.89
7.2.200.0040.00614.85
7.2.190.0050.01114.91
7.2.180.0090.00714.89
7.2.170.0010.01114.96
7.2.160.0060.00815.09
7.2.150.0060.01016.74
7.2.140.0090.00516.86
7.2.130.0090.00516.83
7.2.120.0070.00416.99
7.2.110.0060.00716.72
7.2.100.0070.00716.89
7.2.90.0070.00716.71
7.2.80.0080.00816.79
7.2.70.0060.01017.00
7.2.60.0050.00916.80
7.2.50.0050.00717.01
7.2.40.0060.00616.89
7.2.30.0070.00516.74
7.2.20.0040.00816.70
7.2.10.0060.00916.70
7.2.00.0040.00917.40
7.1.330.0080.00615.77
7.1.320.0080.00515.76
7.1.310.0050.00715.76
7.1.300.0060.01015.62
7.1.290.0060.00815.60
7.1.280.0040.00715.55
7.1.270.0050.00915.62
7.1.260.0070.00615.84
7.1.250.0100.00415.75
7.1.240.0040.01115.73
7.1.230.0050.00515.63
7.1.220.0040.00615.61
7.1.210.0060.00615.77
7.1.200.0030.00815.84
7.1.190.0050.00815.65
7.1.180.0040.01115.63
7.1.170.0050.01015.67
7.1.160.0050.00715.77
7.1.150.0060.00615.52
7.1.140.0050.00915.76
7.1.130.0040.00615.73
7.1.120.0040.00815.77
7.1.110.0040.01315.67
7.1.100.0070.00716.55
7.1.90.0020.01315.73
7.1.80.0070.00715.72
7.1.70.0060.00716.00
7.1.60.0080.00317.00
7.1.50.0080.00816.19
7.1.40.0030.01015.65
7.1.30.0030.00715.75
7.1.20.0030.00615.59
7.1.10.0030.01215.56
7.1.00.0050.02918.10
7.0.330.0000.01315.30
7.0.320.0070.00515.47
7.0.310.0060.00415.29
7.0.300.0070.00715.42
7.0.290.0060.00515.30
7.0.280.0000.01215.23
7.0.270.0020.00715.36
7.0.260.0100.00615.33
7.0.250.0070.00815.31
7.0.240.0020.00915.52
7.0.230.0040.00515.31
7.0.220.0050.00715.25
7.0.210.0050.00715.42
7.0.200.0050.00415.68
7.0.190.0090.00315.44
7.0.180.0020.00915.14
7.0.170.0020.00715.35
7.0.160.0060.00615.41
7.0.150.0080.00415.42
7.0.140.0050.02917.48
7.0.130.0090.00415.46
7.0.120.0050.00815.30
7.0.110.0070.00515.28
7.0.100.0050.00915.33
7.0.90.0030.00815.40
7.0.80.0050.00815.41
7.0.70.0080.00715.28
7.0.60.0070.02816.99
7.0.50.0050.01816.19
7.0.40.0080.03215.67
7.0.30.0160.02715.55
7.0.20.0150.02115.75
7.0.10.0050.03415.73
7.0.00.0040.02415.72
5.6.400.0040.00914.43
5.6.390.0030.00714.31
5.6.380.0050.00614.34
5.6.370.0040.00914.30
5.6.360.0060.00514.11
5.6.350.0060.00514.27
5.6.340.0100.00314.35
5.6.330.0080.00414.59
5.6.320.0040.01014.32
5.6.310.0050.00714.42
5.6.300.0080.00614.38
5.6.290.0000.01014.35
5.6.280.0050.03016.55
5.6.270.0030.00914.40
5.6.260.0070.00514.36
5.6.250.0060.00714.20
5.6.240.0040.00714.33
5.6.230.0080.00614.44
5.6.220.0050.01014.17
5.6.210.0050.02416.42
5.6.200.0040.01915.55
5.6.190.0030.02916.27
5.6.180.0120.01416.40
5.6.170.0130.02816.31
5.6.160.0060.02716.52
5.6.150.0100.03115.55
5.6.140.0100.03115.71
5.6.130.0070.03015.57
5.6.120.0080.02916.46
5.6.110.0040.03316.70
5.6.100.0040.03316.46
5.6.90.0090.03016.62
5.6.80.0030.02116.40
5.6.70.0060.00914.30
5.6.60.0040.01014.26
5.6.50.0070.00514.20
5.6.40.0070.00714.42
5.6.30.0050.00714.18
5.6.20.0020.01414.27
5.6.10.0050.00814.35
5.6.00.0100.00314.12
5.5.380.0010.01014.18
5.5.370.0040.01114.19
5.5.360.0070.00513.85
5.5.350.0150.02716.30
5.5.340.0090.03115.69
5.5.330.0070.01716.28
5.5.320.0110.02916.00
5.5.310.0130.02816.30
5.5.300.0070.01815.58
5.5.290.0110.02915.33
5.5.280.0050.01916.44
5.5.270.0060.03116.50
5.5.260.0070.02916.30
5.5.250.0060.02516.34
5.5.240.0080.02716.09
5.5.230.0060.00614.09
5.5.220.0080.00314.21
5.5.210.0040.00614.11
5.5.200.0030.01014.17
5.5.190.0070.00714.32
5.5.180.0050.00714.22
5.5.170.0040.00914.07
5.5.160.0030.01214.21
5.5.150.0070.00714.04
5.5.140.0050.00814.13
5.5.130.0020.01114.20
5.5.120.0060.00614.01
5.5.110.0060.00714.07
5.5.100.0030.00914.05
5.5.90.0100.00414.21
5.5.80.0020.01014.04
5.5.70.0040.00413.94
5.5.60.0050.00814.11
5.5.50.0060.00714.07
5.5.40.0060.00314.11
5.5.30.0080.00314.14
5.5.20.0090.00514.20
5.5.10.0080.00613.95
5.5.00.0050.00714.08
5.4.450.0300.02214.68
5.4.440.0310.02214.60
5.4.430.0210.02214.58
5.4.420.0240.02114.67
5.4.410.0280.02814.58
5.4.400.0310.02514.45
5.4.390.0300.02814.59
5.4.380.0060.02414.26
5.4.370.0040.02314.29
5.4.360.0090.01714.29
5.4.350.0060.02414.28
5.4.340.0050.02214.33
5.4.330.0050.00712.09
5.4.320.0090.01612.29
5.4.310.0070.01712.26
5.4.300.0080.01412.24
5.4.290.0040.02512.26
5.4.280.0080.01912.28
5.4.270.0060.01812.22
5.4.260.0040.01912.16
5.4.250.0050.01712.20
5.4.240.0060.01612.23
5.4.230.0030.01712.28
5.4.220.0070.01412.21
5.4.210.0030.01612.27
5.4.200.0050.01612.12
5.4.190.0050.01412.18
5.4.180.0030.01912.26
5.4.170.0050.01812.18
5.4.160.0060.01412.21
5.4.150.0020.01612.21
5.4.140.0040.01812.20
5.4.130.0040.01812.09
5.4.120.0070.01412.11
5.4.110.0060.01612.15
5.4.100.0050.01712.10
5.4.90.0030.02212.11
5.4.80.0080.01512.07
5.4.70.0030.02212.17
5.4.60.0040.02112.14
5.4.50.0060.01412.15
5.4.40.0030.01712.08
5.4.30.0070.01412.13
5.4.20.0060.01712.15
5.4.10.0050.01512.07
5.4.00.0060.01411.96
5.3.290.0050.01812.29
5.3.280.0070.01312.21
5.3.270.0040.01712.22
5.3.260.0070.01512.23
5.3.250.0040.01712.14
5.3.240.0060.01512.21
5.3.230.0060.01612.19
5.3.220.0050.02012.11
5.3.210.0070.01812.20
5.3.200.0070.01412.12
5.3.190.0070.01812.11
5.3.180.0030.02112.25
5.3.170.0060.02612.28
5.3.160.0030.01912.24
5.3.150.0040.01512.29
5.3.140.0040.01812.22
5.3.130.0060.01812.22
5.3.120.0060.01912.16
5.3.110.0070.01812.14
5.3.100.0050.01812.03
5.3.90.0070.02012.05
5.3.80.0070.01811.94
5.3.70.0070.01912.00
5.3.60.0070.01711.96
5.3.50.0050.01912.02
5.3.40.0050.02112.00
5.3.30.0050.02211.97
5.3.20.0050.02111.82
5.3.10.0060.01911.80
5.3.00.0040.02211.78
5.2.170.0120.0369.18
5.2.160.0040.0319.18
5.2.150.0070.0309.18
5.2.140.0060.0319.17
5.2.130.0040.0319.14
5.2.120.0050.0299.14
5.2.110.0050.0299.14
5.2.100.0040.0309.14
5.2.90.0070.0309.14
5.2.80.0060.0299.14
5.2.70.0050.0339.14
5.2.60.0040.0329.09
5.2.50.0040.0319.05
5.2.40.0060.0289.04
5.2.30.0040.0319.01
5.2.20.0080.0269.00
5.2.10.0040.0298.92
5.2.00.0070.0278.77
5.1.60.0060.0228.06
5.1.50.0030.0278.05
5.1.40.0030.0268.04
5.1.30.0040.0268.39
5.1.20.0030.0288.41
5.1.10.0040.0268.13
5.1.00.0040.0268.14
5.0.50.0060.0236.62
5.0.40.0040.0236.48
5.0.30.0020.0336.29
5.0.20.0040.0216.26
5.0.10.0020.0226.24
5.0.00.0040.0316.23
4.4.90.0040.0154.78
4.4.80.0050.0144.76
4.4.70.0050.0154.76
4.4.60.0030.0164.76
4.4.50.0040.0204.77
4.4.40.0040.0254.70
4.4.30.0030.0154.76
4.4.20.0010.0174.85
4.4.10.0030.0154.85
4.4.00.0030.0264.75
4.3.110.0020.0164.66
4.3.100.0000.0174.67
4.3.90.0010.0164.64
4.3.80.0010.0264.59
4.3.70.0040.0214.63
4.3.60.0020.0204.63
4.3.50.0020.0164.62
4.3.40.0030.0244.54
4.3.30.0030.0143.29
4.3.20.0010.0163.26
4.3.10.0030.0143.22
4.3.00.0130.0279.43

preferences:
44.37 ms | 400 KiB | 5 Q