3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = []; $array[] = 'foo'; unset($array[0]); $array[] = 'bar'; var_dump(array_keys($array));

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)
8.3.40.0070.00718.58
8.3.30.0100.00718.96
8.3.20.0040.00420.30
8.3.10.0050.00322.13
8.3.00.0040.00422.38
8.2.170.0060.00922.96
8.2.160.0100.01019.25
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0060.01226.16
8.2.120.0080.00019.36
8.2.110.0030.00722.26
8.2.100.0080.00419.64
8.2.90.0080.00019.22
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0040.00417.93
8.2.50.0030.00518.07
8.2.40.0080.00020.00
8.2.30.0070.00017.93
8.2.20.0030.00617.69
8.2.10.0040.00417.67
8.2.00.0030.00517.66
8.1.270.0080.00021.93
8.1.260.0040.00426.35
8.1.250.0070.00328.09
8.1.240.0060.00323.85
8.1.230.0040.00719.10
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.13
8.1.190.0000.00817.41
8.1.180.0040.00418.54
8.1.170.0040.00418.46
8.1.160.0030.00322.02
8.1.150.0070.00018.61
8.1.140.0040.00417.39
8.1.130.0030.00317.82
8.1.120.0040.00417.35
8.1.110.0040.00417.41
8.1.100.0040.00417.37
8.1.90.0040.00417.28
8.1.80.0030.00417.37
8.1.70.0000.00717.28
8.1.60.0030.00817.50
8.1.50.0000.00717.35
8.1.40.0000.00817.46
8.1.30.0050.00317.56
8.1.20.0060.00317.58
8.1.10.0000.00717.48
8.1.00.0000.00817.43
8.0.300.0070.00018.77
8.0.290.0000.00717.05
8.0.280.0030.00318.28
8.0.270.0000.00716.65
8.0.260.0000.00716.74
8.0.250.0030.00316.78
8.0.240.0070.00016.89
8.0.230.0000.00716.87
8.0.220.0040.00416.80
8.0.210.0040.00416.87
8.0.200.0030.00316.77
8.0.190.0050.00316.78
8.0.180.0000.00716.79
8.0.170.0060.00316.83
8.0.160.0000.00816.89
8.0.150.0070.00016.76
8.0.140.0000.00716.78
8.0.130.0030.00513.29
8.0.120.0040.00416.84
8.0.110.0080.00016.78
8.0.100.0070.00016.86
8.0.90.0060.00316.68
8.0.80.0030.01216.74
8.0.70.0070.00016.86
8.0.60.0000.00716.78
8.0.50.0040.00416.70
8.0.30.0080.01116.98
8.0.20.0090.01217.40
8.0.10.0070.00016.77
8.0.00.0080.01116.83
7.4.330.0030.00315.00
7.4.320.0070.00016.35
7.4.300.0000.00616.43
7.4.290.0030.00616.50
7.4.280.0070.00016.61
7.4.270.0030.00316.62
7.4.260.0000.00716.49
7.4.250.0050.00316.48
7.4.240.0050.00216.46
7.4.230.0000.00716.68
7.4.220.0070.01016.53
7.4.210.0070.00716.50
7.4.200.0000.00716.30
7.4.190.0020.00516.68
7.4.160.0080.00816.49
7.4.150.0060.01117.40
7.4.140.0090.00817.86
7.4.130.0060.01116.37
7.4.120.0110.00716.54
7.4.110.0110.00616.28
7.4.100.0190.00616.52
7.4.90.0090.01216.23
7.4.80.0060.01219.39
7.4.70.0080.00816.17
7.4.60.0030.01416.34
7.4.50.0000.00816.32
7.4.40.0040.01122.77
7.4.30.0070.01016.39
7.4.00.0070.01114.91
7.3.330.0020.00513.17
7.3.320.0030.00313.09
7.3.310.0000.00916.39
7.3.300.0000.00616.25
7.3.290.0090.00616.28
7.3.280.0090.00716.25
7.3.270.0000.01617.40
7.3.260.0110.00716.36
7.3.250.0120.00716.26
7.3.240.0180.00016.59
7.3.230.0170.00616.39
7.3.210.0100.00716.52
7.3.200.0190.00319.39
7.3.190.0060.01216.26
7.3.180.0030.01216.61
7.3.170.0130.00316.47
7.3.160.0120.00316.34
7.3.120.0000.01414.75
7.3.00.0070.00716.66
7.2.330.0180.00016.54
7.2.320.0060.01216.53
7.2.310.0040.01616.55
7.2.300.0090.00916.68
7.2.290.0110.00616.59
7.2.130.0000.00916.79
7.2.120.0090.00916.75
7.2.110.0130.00316.61
7.2.100.0060.00616.37
7.2.90.0100.00716.68
7.2.80.0030.01316.89
7.2.70.0060.00616.78
7.2.60.0060.00616.85
7.2.50.0030.01016.91
7.2.40.0080.00816.91
7.2.30.0030.01416.58
7.2.20.0130.00316.43
7.2.10.0040.00816.92
7.2.00.0060.00517.89
7.1.250.0100.00315.63
7.1.240.0100.00315.71
7.1.230.0120.00315.63
7.1.220.0040.00715.35
7.1.210.0090.00615.59
7.1.200.0040.00815.72
7.1.190.0070.00715.85
7.1.180.0060.00615.65
7.1.170.0030.00915.55
7.1.160.0030.00915.94
7.1.150.0030.00615.71
7.1.140.0030.00915.70
7.1.130.0070.00315.69
7.1.120.0100.00015.75
7.1.110.0030.00615.76
7.1.100.0100.00015.58
7.1.90.0040.01115.73
7.1.80.0000.01315.81
7.1.70.0000.00816.42
7.1.60.0060.00416.31
7.1.50.0050.01216.24
7.1.40.0070.00715.76
7.1.30.0070.00015.70
7.1.20.0040.01115.62
7.1.10.0030.01215.61
7.1.00.0030.01918.94
7.0.330.0000.01215.34
7.0.320.0030.01015.58
7.0.310.0070.00715.27
7.0.300.0040.00815.34
7.0.290.0040.00715.47
7.0.280.0040.01215.51
7.0.270.0040.00715.44
7.0.260.0040.00815.09
7.0.250.0100.00015.12
7.0.240.0040.00815.30
7.0.230.0000.01315.61
7.0.220.0060.00615.45
7.0.210.0030.00715.43
7.0.200.0050.00316.12
7.0.190.0090.00015.35
7.0.180.0070.00715.56
7.0.170.0000.00915.57
7.0.160.0040.00715.39
7.0.150.0060.00915.46
7.0.140.0070.03918.82
7.0.130.0040.00815.13
7.0.120.0070.01015.18
7.0.110.0060.00615.43
7.0.100.0130.00015.45
7.0.90.0000.01115.39
7.0.80.0000.01315.19
7.0.70.2230.02317.64
7.0.60.0040.02417.70
7.0.50.0080.02016.61
7.0.40.0120.01816.83
7.0.30.0170.04416.75
7.0.20.0240.03516.79
7.0.10.0160.03516.91
7.0.00.0100.02216.85
5.6.380.0110.00014.62
5.6.370.0050.00514.37
5.6.360.0090.00314.25
5.6.350.0040.01114.37
5.6.340.0000.01614.20
5.6.330.0080.00414.01
5.6.320.0030.01014.34
5.6.310.0040.01114.50
5.6.300.0070.00714.61
5.6.290.0080.00614.05
5.6.280.0040.03617.68
5.6.270.0080.00014.48
5.6.260.0000.01014.10
5.6.250.0030.00614.57
5.6.240.0070.00414.60
5.6.230.0070.00414.25
5.6.220.0050.00814.16
5.6.210.0180.03017.49
5.6.200.0050.03216.29
5.6.190.0100.04317.40
5.6.180.0180.02717.50
5.6.170.0200.04117.49
5.6.160.0150.03517.47
5.6.150.0060.02316.22
5.6.140.0040.02916.19
5.6.130.0080.03616.33
5.6.120.0110.04317.54
5.6.110.0120.02017.74
5.6.100.0130.03117.64
5.6.90.0150.03317.89
5.6.80.0030.02417.19
5.6.70.0120.02017.46
5.6.60.0030.00614.23
5.6.50.0040.01114.34
5.6.40.0070.00314.27
5.6.30.0070.00714.02
5.6.20.0030.00614.54
5.6.10.0030.00614.40
5.6.00.0110.00414.07
5.5.380.0030.00311.18
5.5.370.0050.00011.18
5.5.360.0070.00711.18
5.5.350.0070.04015.80
5.5.340.0030.04514.67
5.5.330.0050.04415.79
5.5.320.0030.02215.69
5.5.310.0200.03815.72
5.5.300.0150.03514.56
5.5.290.0030.03714.54
5.5.280.0030.03816.07
5.5.270.0070.02116.00
5.5.260.0060.02515.95
5.5.250.0090.03715.87
5.5.240.0080.02015.66
5.5.230.0070.00311.18
5.5.220.0040.00411.18
5.5.210.0040.00411.18
5.5.200.0030.00711.18
5.5.190.0070.00411.18
5.5.180.0030.00911.18
5.5.170.0050.00211.21
5.5.160.0030.00611.18
5.5.150.0040.00711.18
5.5.140.0070.00311.18
5.5.130.0070.00411.20
5.5.120.0060.00011.18
5.5.110.0030.00711.18
5.5.100.0070.00311.34
5.5.90.0070.00311.18
5.5.80.0060.00611.18
5.5.70.0050.00311.18
5.5.60.0040.00411.18
5.5.50.0080.00311.18
5.5.40.0040.00711.18
5.5.30.0030.01011.18
5.5.20.0060.00611.18
5.5.10.0050.00311.18
5.5.00.0030.00311.18
5.4.450.0200.03915.31
5.4.440.0500.03015.27
5.4.430.0430.02915.21
5.4.420.0400.02915.20
5.4.410.0410.02615.18
5.4.400.0380.03815.07
5.4.390.0470.02815.17
5.4.380.0100.03014.96
5.4.370.0250.02514.86
5.4.360.0280.02514.81
5.4.350.0040.02411.57
5.4.340.0100.03111.57
5.4.330.0030.00711.18
5.4.320.0080.01711.81
5.4.310.0060.02411.85
5.4.300.0080.01811.81
5.4.290.0070.02111.81
5.4.280.0040.02211.76
5.4.270.0050.02211.77
5.4.260.0070.04315.10
5.4.250.0030.03314.96
5.4.240.0050.04314.94
5.4.230.0070.02614.94
5.4.220.0080.03714.97
5.4.210.0080.03015.10
5.4.200.0110.03715.03
5.4.190.0120.03415.08
5.4.180.0060.04314.95
5.4.170.0050.04315.05
5.4.160.0080.03015.03
5.4.150.0070.03214.90
5.4.140.0120.03313.94
5.4.130.0050.03013.73
5.4.120.0050.03713.84
5.4.110.0040.04513.76
5.4.100.0080.03013.80
5.4.90.0070.02713.71
5.4.80.0070.03313.70
5.4.70.0050.02813.73
5.4.60.0110.03313.68
5.4.50.0120.02313.67
5.4.40.0130.02313.78
5.4.30.0100.02713.75
5.4.20.0050.03813.72
5.4.10.0080.03313.80
5.4.00.0030.03513.55
5.3.290.0070.02011.99
5.3.280.0040.04112.83
5.3.270.0000.03412.91
5.3.260.0080.02812.82
5.3.250.0040.03512.91
5.3.240.0080.02912.83
5.3.230.0020.03212.84
5.3.220.0050.03412.87
5.3.210.0070.02912.90
5.3.200.0070.03812.81
5.3.190.0060.03112.87
5.3.180.0080.03712.88
5.3.170.0100.03112.87
5.3.160.0060.02712.88
5.3.150.0020.03412.87
5.3.140.0070.03412.88
5.3.130.0010.03112.79
5.3.120.0030.04312.80
5.3.110.0110.03012.87
5.3.100.0120.03012.61
5.3.90.0120.03212.62
5.3.80.0080.03212.57
5.3.70.0080.02812.67
5.3.60.0080.03012.66
5.3.50.0050.03512.50
5.3.40.0060.02812.48
5.3.30.0090.02612.55
5.3.20.0120.02912.40
5.3.10.0030.02812.36
5.3.00.0070.02812.42
5.2.170.0070.02411.17
5.2.160.0020.02711.16
5.2.150.0090.02811.12
5.2.140.0050.03211.16
5.2.130.0070.02711.09
5.2.120.0040.02911.13
5.2.110.0080.02511.21
5.2.100.0050.02211.13
5.2.90.0060.02511.09
5.2.80.0050.03511.14
5.2.70.0070.02511.03
5.2.60.0050.03211.17
5.2.50.0110.02510.98
5.2.40.0030.02311.05
5.2.30.0080.02811.13
5.2.20.0030.02910.95
5.2.10.0080.02410.97
5.2.00.0070.02510.98
5.1.60.0060.02410.57
5.1.50.0100.02010.55
5.1.40.0050.01910.69
5.1.30.0030.02510.70
5.1.20.0070.02810.72
5.1.10.0020.02710.69
5.1.00.0060.02810.59
5.0.50.0030.0229.98
5.0.40.0050.0189.75
5.0.30.0000.0299.72
5.0.20.0060.0209.71
5.0.10.0020.0249.59
5.0.00.0050.0279.68
4.4.90.0030.0159.25
4.4.80.0060.0089.25
4.4.70.0030.0149.25
4.4.60.0000.0139.25
4.4.50.0030.0129.25
4.4.40.0010.0229.25
4.4.30.0020.0199.25
4.4.20.0000.0209.25
4.4.10.0050.0159.25
4.4.00.0070.0219.25
4.3.110.0020.0139.25
4.3.100.0030.0139.25
4.3.90.0000.0159.25
4.3.80.0030.0229.25
4.3.70.0020.0109.25
4.3.60.0060.0119.25
4.3.50.0030.0129.25
4.3.40.0020.0199.25
4.3.30.0040.0139.25
4.3.20.0000.0179.25
4.3.10.0020.0139.25
4.3.00.0070.0159.23

preferences:
46.05 ms | 400 KiB | 5 Q