3v4l.org

run code in 300+ PHP versions simultaneously
<?php $header = array('test'); if (isset($header[0]['class'])) { echo $header[0]['class']; } else { echo 'not set'; }

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)
8.3.60.0110.00718.08
8.3.50.0100.00821.90
8.3.40.0040.01118.81
8.3.30.0030.01019.22
8.3.20.0030.00520.22
8.3.10.0080.00020.52
8.3.00.0080.00019.38
8.2.180.0130.00316.50
8.2.170.0030.01022.96
8.2.160.0130.00720.44
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00422.06
8.2.110.0050.00320.52
8.2.100.0080.00418.12
8.2.90.0040.00419.18
8.2.80.0050.00317.97
8.2.70.0030.00517.63
8.2.60.0000.01017.93
8.2.50.0030.00618.07
8.2.40.0080.00019.95
8.2.30.0000.00717.93
8.2.20.0030.00517.67
8.2.10.0000.00917.87
8.2.00.0020.00517.62
8.1.280.0070.01125.92
8.1.270.0030.00523.98
8.1.260.0000.00726.35
8.1.250.0100.01028.09
8.1.240.0060.00323.97
8.1.230.0040.00719.01
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0110.00017.10
8.1.190.0050.00317.10
8.1.180.0080.00018.10
8.1.170.0050.00318.54
8.1.160.0070.00021.96
8.1.150.0000.00718.86
8.1.140.0040.00417.27
8.1.130.0000.00717.72
8.1.120.0070.00017.43
8.1.110.0080.00017.30
8.1.100.0040.00417.38
8.1.90.0030.00317.40
8.1.80.0040.00317.43
8.1.70.0040.00417.28
8.1.60.0040.00417.50
8.1.50.0030.00517.34
8.1.40.0030.00517.46
8.1.30.0060.00317.56
8.1.20.0040.00417.49
8.1.10.0030.00617.43
8.1.00.0040.00417.43
8.0.300.0070.00018.77
8.0.290.0050.00316.75
8.0.280.0030.00318.55
8.0.270.0030.00317.17
8.0.260.0000.00717.21
8.0.250.0050.00216.89
8.0.240.0030.00316.88
8.0.230.0070.00016.91
8.0.220.0030.00316.89
8.0.210.0000.00716.84
8.0.200.0000.00616.88
8.0.190.0040.00816.88
8.0.180.0070.00016.90
8.0.170.0030.00616.88
8.0.160.0030.00316.79
8.0.150.0000.00716.87
8.0.140.0040.00416.79
8.0.130.0030.00313.23
8.0.120.0060.00316.79
8.0.110.0000.00816.84
8.0.100.0070.00016.70
8.0.90.0040.00416.78
8.0.80.0040.01116.88
8.0.70.0030.00316.87
8.0.60.0040.00416.86
8.0.50.0000.00716.70
8.0.30.0100.00817.14
8.0.20.0100.01417.40
8.0.10.0000.00716.93
8.0.00.0090.00916.77
7.4.330.0050.00015.02
7.4.320.0000.00716.58
7.4.300.0030.00316.34
7.4.290.0030.00316.59
7.4.280.0040.00416.30
7.4.270.0070.00016.53
7.4.260.0030.00316.35
7.4.250.0000.00716.50
7.4.240.0070.00016.48
7.4.230.0030.00316.24
7.4.220.0070.01916.46
7.4.210.0070.00716.50
7.4.200.0000.00716.57
7.4.160.0040.01116.45
7.4.150.0100.01017.40
7.4.140.0080.01017.86
7.4.130.0090.00816.57
7.4.120.0080.01116.58
7.4.110.0080.00816.57
7.4.100.0080.01116.53
7.4.90.0100.00616.54
7.4.80.0120.00919.39
7.4.70.0080.00816.42
7.4.60.0140.00416.59
7.4.50.0040.00416.48
7.4.40.0100.00716.29
7.4.30.0090.00616.41
7.4.00.0060.00614.90
7.3.330.0040.00213.11
7.3.320.0050.00013.18
7.3.310.0040.00416.41
7.3.300.0030.00316.25
7.3.290.0070.00716.21
7.3.280.0080.01016.27
7.3.270.0090.00917.40
7.3.260.0060.01116.45
7.3.250.0080.00816.38
7.3.240.0070.01616.25
7.3.230.0140.01116.39
7.3.210.0070.01016.31
7.3.200.0070.01319.39
7.3.190.0070.01116.48
7.3.180.0120.00316.59
7.3.170.0130.00316.30
7.3.160.0080.00816.47
7.3.10.0140.00716.50
7.3.00.0130.00016.55
7.2.330.0120.00616.58
7.2.320.0000.01616.25
7.2.310.0130.01016.57
7.2.300.0100.00716.61
7.2.290.0130.01016.31
7.2.130.0030.00916.52
7.2.120.0150.00416.35
7.2.110.0030.00916.73
7.2.100.0090.00816.54
7.2.90.0080.01016.37
7.2.80.0070.01216.44
7.2.70.0110.00716.61
7.2.60.0090.01016.58
7.2.50.0100.00916.54
7.2.40.0120.00816.92
7.2.30.0080.00916.77
7.2.20.0110.00616.48
7.2.10.0170.00416.41
7.2.00.0070.00917.60
7.1.250.0140.00315.29
7.1.240.0120.00415.79
7.1.230.0070.00715.62
7.1.220.0110.00415.48
7.1.210.0110.00815.74
7.1.200.0100.00415.84
7.1.190.0080.00615.76
7.1.180.0060.01215.77
7.1.170.0140.00315.70
7.1.160.0080.00815.59
7.1.150.0110.00415.54
7.1.140.0040.01115.93
7.1.130.0170.00315.35
7.1.120.0150.00315.63
7.1.110.0150.00415.80
7.1.100.0080.00716.62
7.1.90.0100.01015.98
7.1.80.0030.01215.82
7.1.70.0080.00416.26
7.1.60.0090.00617.55
7.1.50.0070.00816.38
7.1.40.0090.00315.84
7.1.30.0030.01315.88
7.1.20.0080.00815.67
7.1.10.0070.00715.56
7.1.00.0100.03819.06
7.0.320.0110.00715.32
7.0.310.0070.01015.40
7.0.300.0120.00315.30
7.0.290.0060.00915.24
7.0.280.0130.00315.44
7.0.270.0090.00915.17
7.0.260.0100.00714.93
7.0.250.0060.00915.25
7.0.240.0140.00315.48
7.0.230.0080.00815.25
7.0.220.0060.01115.16
7.0.210.0090.00215.06
7.0.200.0030.00915.99
7.0.190.0130.00515.18
7.0.180.0130.00015.19
7.0.170.0170.00315.30
7.0.160.0080.00815.27
7.0.150.0110.00415.43
7.0.140.0160.03218.54
7.0.130.0120.00615.21
7.0.120.0140.00015.22
7.0.110.0100.00315.33
7.0.100.0060.01115.20
7.0.90.0120.00615.04
7.0.80.0180.00015.22
7.0.70.2580.02517.63
7.0.60.0110.04217.58
7.0.50.0070.02716.60
7.0.40.0130.02616.89
7.0.30.0140.03616.83
7.0.20.0250.03316.72
7.0.10.0150.04516.75
7.0.00.0090.03416.60
5.6.380.0110.00514.50
5.6.370.0180.00014.45
5.6.360.0100.01014.57
5.6.350.0120.00414.26
5.6.340.0060.00914.28
5.6.330.0090.00714.26
5.6.320.0140.00414.41
5.6.310.0110.00614.31
5.6.300.0130.00314.61
5.6.290.0090.00514.24
5.6.280.0050.04217.68
5.6.270.0100.00514.52
5.6.260.0150.00014.39
5.6.250.0160.00014.33
5.6.240.0100.00714.13
5.6.230.0160.00014.35
5.6.220.0120.00414.23
5.6.210.0110.04317.46
5.6.200.0060.05016.35
5.6.190.0090.02817.38
5.6.180.0160.02417.36
5.6.170.0330.03817.34
5.6.160.0070.03517.35
5.6.150.0040.02516.33
5.6.140.0080.04616.31
5.6.130.0060.04516.17
5.6.120.0060.03117.74
5.6.110.0170.04017.84
5.6.100.0100.03517.84
5.6.90.0100.04517.56
5.6.80.0090.04017.16
5.6.70.0090.03817.28
5.6.60.0080.00814.26
5.6.50.0080.00814.28
5.6.40.0140.00314.07
5.6.30.0100.00714.05
5.6.20.0070.00714.21
5.6.10.0100.00314.34
5.6.00.0060.00914.14
5.5.380.0130.00211.08
5.5.370.0090.00311.16
5.5.360.0070.00211.07
5.5.350.0100.04215.88
5.5.340.0160.03314.59
5.5.330.0080.02815.73
5.5.320.0040.04915.58
5.5.310.0180.04215.68
5.5.300.0070.03514.54
5.5.290.0120.04014.59
5.5.280.0070.02216.08
5.5.270.0060.05015.86
5.5.260.0100.04215.97
5.5.250.0170.03715.91
5.5.240.0070.04515.67
5.5.230.0130.00011.07
5.5.220.0030.00911.07
5.5.210.0110.00011.08
5.5.200.0110.00311.12
5.5.190.0070.00311.11
5.5.180.0000.00711.18
5.5.170.0000.01614.34
5.5.160.0060.00311.07
5.5.150.0000.01211.14
5.5.140.0030.00611.22
5.5.130.0110.00011.07
5.5.120.0060.00611.07
5.5.110.0030.00311.07
5.5.100.0030.00711.07
5.5.90.0070.00411.07
5.5.80.0060.00311.07
5.5.70.0040.00811.22
5.5.60.0030.00311.08
5.5.50.0000.00611.11
5.5.40.0090.00311.20
5.5.30.0040.00711.07
5.5.20.0090.00011.07
5.5.10.0070.00311.27
5.5.00.0030.00611.07
5.4.450.0120.02815.17
5.4.440.0160.02515.26
5.4.430.0270.02315.12
5.4.420.0350.00315.19
5.4.410.0370.00015.25
5.4.400.0310.00614.97
5.4.390.0340.00315.04
5.4.380.0340.00215.10
5.4.370.0340.00315.11
5.4.360.0320.00515.04
5.4.350.0330.00215.04
5.4.340.0350.00615.00
5.4.330.0110.00011.07
5.4.320.0020.02411.77
5.4.310.0080.01811.76
5.4.300.0030.02411.76
5.4.290.0070.02111.76
5.4.280.0030.02511.71
5.4.270.0040.02411.71
5.4.260.0040.02311.71
5.4.250.0060.02011.71
5.4.240.0040.02311.71
5.4.230.0030.03211.71
5.4.220.0040.02411.71
5.4.210.0070.02011.71
5.4.200.0030.02511.71
5.4.190.0040.02311.70
5.4.180.0040.02211.71
5.4.170.0040.02311.71
5.4.160.0040.02011.71
5.4.150.0060.02411.71
5.4.140.0040.02311.59
5.4.130.0050.02411.54
5.4.120.0050.02511.52
5.4.110.0030.02211.52
5.4.100.0110.01711.52
5.4.90.0040.02311.52
5.4.80.0050.02211.53
5.4.70.0040.02311.52
5.4.60.0080.01911.52
5.4.50.0070.02211.55
5.4.40.0060.02311.51
5.4.30.0080.03111.53
5.4.20.0040.02711.51
5.4.10.0070.02011.51
5.4.00.0090.01911.26
5.3.290.0030.02611.94
5.3.280.0050.02211.89
5.3.270.0050.02311.90
5.3.260.0040.03111.90
5.3.250.0070.02011.90
5.3.240.0050.02211.90
5.3.230.0070.02111.89
5.3.220.0070.02111.88
5.3.210.0080.02011.88
5.3.200.0040.02211.88
5.3.190.0050.02311.88
5.3.180.0070.02111.88
5.3.170.0050.02411.87
5.3.160.0060.02011.87
5.3.150.0060.02111.87
5.3.140.0050.01911.87
5.3.130.0040.02811.87
5.3.120.0060.02211.87
5.3.110.0090.02011.87
5.3.100.0060.02411.59
5.3.90.0080.02211.58
5.3.80.0080.02011.57
5.3.70.0070.02111.57
5.3.60.0050.02111.57
5.3.50.0060.02311.54
5.3.40.0070.02211.54
5.3.30.0040.02011.51
5.3.20.0040.02111.40
5.3.10.0060.02011.38
5.3.00.0040.02111.38
5.2.170.0050.01810.13
5.2.160.0060.01510.13
5.2.150.0040.01910.13
5.2.140.0070.01510.12
5.2.130.0040.01710.10
5.2.120.0060.01310.10
5.2.110.0060.01410.11
5.2.100.0070.01610.11
5.2.90.0060.01710.11
5.2.80.0040.01610.10
5.2.70.0060.01510.10
5.2.60.0080.01810.08
5.2.50.0030.02310.06
5.2.40.0040.01710.05
5.2.30.0050.01810.04
5.2.20.0080.01610.03
5.2.10.0040.0169.99
5.2.00.0040.0179.92
5.1.60.0030.0169.57
5.1.50.0030.0159.56
5.1.40.0030.0169.56
5.1.30.0030.0189.73
5.1.20.0080.0199.74
5.1.10.0070.0189.60
5.1.00.0040.0219.60
5.0.50.0030.0148.84
5.0.40.0020.0158.78
5.0.30.0020.0208.68
5.0.20.0030.0128.66
5.0.10.0010.0148.66
5.0.00.0060.0168.65
4.4.90.0040.0187.93
4.4.80.0040.0097.91
4.4.70.0020.0107.92
4.4.60.0030.0117.91
4.4.50.0030.0097.92
4.4.40.0020.0167.89
4.4.30.0020.0127.92
4.4.20.0030.0097.96
4.4.10.0030.0087.96
4.4.00.0050.0137.92
4.3.110.0020.0107.87
4.3.100.0010.0117.87
4.3.90.0020.0097.86
4.3.80.0020.0147.83
4.3.70.0040.0087.85
4.3.60.0040.0097.85
4.3.50.0030.0097.85
4.3.40.0020.0147.80
4.3.30.0010.0127.18
4.3.20.0020.0107.17
4.3.10.0020.0117.14
4.3.00.0030.01112.34

preferences:
44.81 ms | 400 KiB | 5 Q