3v4l.org

run code in 300+ PHP versions simultaneously
<?php $header = array('test'); print_r($header); if (isset($header[0]['class'])) { echo 'set'; } 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)
8.3.40.0150.00618.91
8.3.30.0000.01418.92
8.3.20.0000.00720.21
8.3.10.0050.00320.51
8.3.00.0040.00419.26
8.2.170.0070.00722.96
8.2.160.0090.00620.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00322.20
8.2.110.0070.00720.33
8.2.100.0110.00018.22
8.2.90.0030.00519.17
8.2.80.0030.00517.97
8.2.70.0040.00417.63
8.2.60.0080.00017.93
8.2.50.0060.00318.07
8.2.40.0030.00519.88
8.2.30.0060.00318.12
8.2.20.0030.00517.74
8.2.10.0040.00417.95
8.2.00.0000.00817.66
8.1.270.0000.00823.83
8.1.260.0040.00426.35
8.1.250.0030.01728.09
8.1.240.0060.00324.01
8.1.230.0070.00419.15
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0060.00317.13
8.1.190.0030.00517.10
8.1.180.0040.00418.10
8.1.170.0050.00318.61
8.1.160.0040.00421.94
8.1.150.0050.00218.73
8.1.140.0000.00717.38
8.1.130.0030.00317.81
8.1.120.0030.00317.38
8.1.110.0030.00617.39
8.1.100.0000.00717.36
8.1.90.0070.00017.42
8.1.80.0070.00017.38
8.1.70.0000.00717.33
8.1.60.0040.00417.55
8.1.50.0060.00317.50
8.1.40.0030.00517.33
8.1.30.0050.00517.52
8.1.20.0040.00417.63
8.1.10.0030.00617.57
8.1.00.0060.00317.43
8.0.300.0000.00718.77
8.0.290.0070.00016.75
8.0.280.0000.00718.48
8.0.270.0070.00017.16
8.0.260.0030.00317.24
8.0.250.0000.00716.86
8.0.240.0000.00616.90
8.0.230.0000.00816.82
8.0.220.0070.00016.76
8.0.210.0030.00316.87
8.0.200.0070.00016.77
8.0.190.0090.00016.83
8.0.180.0040.00416.85
8.0.170.0030.00616.73
8.0.160.0040.00416.73
8.0.150.0030.00316.65
8.0.140.0030.00316.77
8.0.130.0000.00513.20
8.0.120.0020.00516.81
8.0.110.0040.00416.73
8.0.100.0000.00816.82
8.0.90.0000.00816.81
8.0.80.0090.00616.88
8.0.70.0040.00416.81
8.0.60.0070.00016.68
8.0.50.0050.00216.62
8.0.30.0110.00817.25
8.0.20.0080.01617.40
8.0.10.0050.00217.01
8.0.00.0100.00716.62
7.4.330.0050.00015.07
7.4.320.0000.00716.56
7.4.300.0030.00316.38
7.4.290.0000.00616.42
7.4.280.0000.00816.34
7.4.270.0030.00316.59
7.4.260.0030.00316.28
7.4.250.0050.00316.50
7.4.240.0040.00416.44
7.4.230.0030.00316.61
7.4.220.0230.00316.48
7.4.210.0110.00316.59
7.4.200.0050.00316.28
7.4.160.0040.01116.41
7.4.150.0190.00317.40
7.4.140.0120.00617.86
7.4.130.0070.00916.49
7.4.120.0090.01016.58
7.4.110.0100.00716.32
7.4.100.0130.00916.34
7.4.90.0090.00616.46
7.4.80.0090.00919.39
7.4.70.0070.01016.53
7.4.60.0080.01516.40
7.4.50.0090.00016.46
7.4.40.0080.00816.51
7.4.30.0060.01016.49
7.4.10.0110.00714.78
7.4.00.0110.00814.91
7.3.330.0050.00213.10
7.3.320.0030.00313.18
7.3.310.0000.00716.32
7.3.300.0030.00316.28
7.3.290.0110.00316.25
7.3.280.0080.00816.26
7.3.270.0150.00317.40
7.3.260.0090.00916.14
7.3.250.0080.00816.39
7.3.240.0090.00916.58
7.3.230.0090.00916.39
7.3.210.0090.00616.45
7.3.200.0120.00919.39
7.3.190.0100.01016.34
7.3.180.0060.00916.25
7.3.170.0170.00616.42
7.3.160.0120.00316.51
7.3.130.0060.01214.66
7.3.120.0030.01314.80
7.3.110.0100.00814.66
7.3.100.0120.00514.69
7.3.90.0060.00814.68
7.3.80.0060.00614.60
7.3.70.0040.01014.81
7.3.60.0040.01114.72
7.3.50.0060.00814.79
7.3.40.0060.00614.68
7.3.30.0070.00514.78
7.3.20.0050.00616.70
7.3.10.0070.00516.62
7.3.00.0070.00616.50
7.2.330.0070.01016.20
7.2.320.0130.00316.37
7.2.310.0060.01116.55
7.2.300.0060.00916.32
7.2.290.0130.00716.38
7.2.260.0100.01014.66
7.2.250.0090.00915.09
7.2.240.0060.01114.87
7.2.230.0090.00714.79
7.2.220.0040.01014.89
7.2.210.0040.01114.88
7.2.200.0040.00914.77
7.2.190.0060.00614.82
7.2.180.0080.00514.80
7.2.170.0060.00914.98
7.2.160.0040.00914.92
7.2.150.0050.00816.88
7.2.140.0050.00716.78
7.2.130.0030.01116.53
7.2.120.0070.01016.66
7.2.110.0030.01316.67
7.2.100.0070.01016.71
7.2.90.0080.00816.80
7.2.80.0100.00816.73
7.2.70.0040.00916.89
7.2.60.0120.00216.79
7.2.50.0080.00816.76
7.2.40.0080.00716.90
7.2.30.0090.00716.77
7.2.20.0090.00716.60
7.2.10.0050.00916.78
7.2.00.0050.00917.59
7.1.330.0060.00715.71
7.1.320.0030.00815.77
7.1.310.0080.00415.63
7.1.300.0080.00415.54
7.1.290.0040.01015.68
7.1.280.0080.00615.80
7.1.270.0060.00915.72
7.1.260.0020.00915.72
7.1.250.0040.01215.70
7.1.240.0060.00915.47
7.1.230.0120.00315.66
7.1.220.0000.01315.62
7.1.210.0030.01015.85
7.1.200.0050.00715.77
7.1.190.0070.00715.85
7.1.180.0060.00315.91
7.1.170.0140.00015.44
7.1.160.0070.00715.76
7.1.150.0060.00915.68
7.1.140.0070.00715.76
7.1.130.0130.00315.88
7.1.120.0080.00815.77
7.1.110.0130.00615.45
7.1.100.0020.01216.85
7.1.90.0120.00615.70
7.1.80.0060.00615.68
7.1.70.0050.00616.43
7.1.60.0110.00117.65
7.1.50.0090.00516.07
7.1.40.0090.00015.67
7.1.30.0000.01615.48
7.1.20.0000.01415.83
7.1.10.0000.01315.72
7.1.00.0060.03918.90
7.0.330.0060.00615.11
7.0.320.0000.01015.13
7.0.310.0100.00015.09
7.0.300.0030.00715.31
7.0.290.0100.00315.30
7.0.280.0000.01415.44
7.0.270.0030.01015.20
7.0.260.0080.00414.98
7.0.250.0100.00715.56
7.0.240.0060.01015.43
7.0.230.0000.01315.27
7.0.220.0060.00915.20
7.0.210.0090.00615.39
7.0.200.0020.00816.11
7.0.190.0000.01115.10
7.0.180.0060.00615.26
7.0.170.0000.01515.24
7.0.160.0110.00015.38
7.0.150.0100.00315.49
7.0.140.0030.04018.61
7.0.130.0040.01115.47
7.0.120.0040.01115.36
7.0.110.0040.00815.47
7.0.100.0000.01115.19
7.0.90.0040.00715.50
7.0.80.0060.00615.36
7.0.70.0000.01015.30
7.0.60.0110.03817.68
7.0.50.0050.03616.61
7.0.40.0120.04316.72
7.0.30.0250.03316.81
7.0.20.0100.02716.65
7.0.10.0080.04316.70
7.0.00.0030.04616.67
5.6.400.0060.00614.79
5.6.390.0030.01014.63
5.6.380.0130.00014.39
5.6.370.0040.01114.39
5.6.360.0100.00714.62
5.6.350.0060.00914.65
5.6.340.0070.01014.46
5.6.330.0030.01114.65
5.6.320.0070.00714.55
5.6.310.0060.00914.50
5.6.300.0030.01214.64
5.6.290.0030.00714.63
5.6.280.0030.04117.45
5.6.270.0060.00914.47
5.6.260.0130.00014.11
5.6.250.0070.00714.44
5.6.240.0040.00814.23
5.6.230.0100.00714.24
5.6.220.0070.00714.36
5.6.210.0020.02617.45
5.6.200.0080.03716.28
5.6.190.0030.02617.29
5.6.180.0180.02317.50
5.6.170.0200.04017.49
5.6.160.0070.03217.38
5.6.150.0080.04516.31
5.6.140.0030.04916.25
5.6.130.0050.02316.31
5.6.120.0050.04517.61
5.6.110.0100.04017.54
5.6.100.0100.04317.68
5.6.90.0070.04317.72
5.6.80.0100.04017.25
5.6.70.0140.00014.17
5.6.60.0070.00714.19
5.6.50.0070.01014.43
5.6.40.0030.01214.18
5.6.30.0090.00914.07
5.6.20.0070.00714.47
5.6.10.0060.00614.28
5.6.00.0030.01014.39
5.5.380.0140.00414.42
5.5.370.0060.00914.35
5.5.360.0030.00614.34
5.5.350.0130.04117.42
5.5.340.0090.03416.21
5.5.330.0030.04317.29
5.5.320.0200.04517.23
5.5.310.0100.02417.17
5.5.300.0050.04316.12
5.5.290.0020.04816.19
5.5.280.0100.02717.65
5.5.270.0020.05017.56
5.5.260.0050.04617.65
5.5.250.0070.03917.32
5.5.240.0150.03717.20
5.5.230.0110.00014.40
5.5.220.0080.00014.29
5.5.210.0000.00814.05
5.5.200.0090.00613.93
5.5.190.0030.01014.05
5.5.180.0040.01114.20
5.5.170.0150.00014.37
5.5.160.0070.00714.14
5.5.150.0030.00614.18
5.5.140.0030.00714.31
5.5.130.0100.00314.23
5.5.120.0070.00714.23
5.5.110.0120.00314.36
5.5.100.0040.01214.12
5.5.90.0070.00414.05
5.5.80.0070.00714.14
5.5.70.0100.00714.52
5.5.60.0040.01114.00
5.5.50.0070.01014.51
5.5.40.0000.01314.24
5.5.30.0060.00814.10
5.5.20.0040.00914.13
5.5.10.0070.01114.06
5.5.00.0070.01014.00
5.4.450.0350.02715.91
5.4.440.0210.03015.95
5.4.430.0450.02415.80
5.4.420.0330.00515.94
5.4.410.0320.00315.81
5.4.400.0330.00415.68
5.4.390.0330.00315.68
5.4.380.0330.00315.73
5.4.370.0320.00215.65
5.4.360.0320.00415.75
5.4.350.0350.00215.77
5.4.340.0360.00115.78
5.4.330.0030.00812.33
5.4.320.0090.02112.41
5.4.310.0070.02812.40
5.4.300.0040.03112.40
5.4.290.0020.03112.40
5.4.280.0080.02712.35
5.4.270.0050.03012.35
5.4.260.0060.02812.35
5.4.250.0120.02312.35
5.4.240.0080.02212.35
5.4.230.0040.02612.35
5.4.220.0060.02812.35
5.4.210.0030.02412.35
5.4.200.0050.02112.35
5.4.190.0030.02312.35
5.4.180.0050.02112.35
5.4.170.0060.02212.35
5.4.160.0040.02312.35
5.4.150.0030.02612.35
5.4.140.0080.03112.19
5.4.130.0050.02212.19
5.4.120.0050.02312.16
5.4.110.0040.02212.16
5.4.100.0040.02112.16
5.4.90.0060.02112.16
5.4.80.0080.02212.16
5.4.70.0050.02012.16
5.4.60.0050.02312.16
5.4.50.0070.02212.16
5.4.40.0060.02312.15
5.4.30.0070.02912.15
5.4.20.0050.02312.15
5.4.10.0070.02012.15
5.4.00.0020.02411.90
5.3.290.0070.04012.80
5.3.280.0060.04012.71
5.3.270.0070.04612.72
5.3.260.0060.03912.72
5.3.250.0080.03612.72
5.3.240.0090.03512.72
5.3.230.0030.04212.71
5.3.220.0060.04212.68
5.3.210.0080.04412.68
5.3.200.0050.04412.68
5.3.190.0040.05012.68
5.3.180.0070.03612.67
5.3.170.0110.03612.67
5.3.160.0050.03912.67
5.3.150.0090.04112.67
5.3.140.0080.03712.66
5.3.130.0080.03712.65
5.3.120.0100.04012.66
5.3.110.0080.04012.66
5.3.100.0070.03912.12
5.3.90.0120.03812.09
5.3.80.0070.04112.08
5.3.70.0080.03612.08
5.3.60.0060.04012.07
5.3.50.0070.04712.01
5.3.40.0070.03712.01
5.3.30.0060.04011.96
5.3.20.0120.03911.75
5.3.10.0060.04011.72
5.3.00.0060.03511.70
5.2.170.0050.0339.21
5.2.160.0080.0349.21
5.2.150.0040.0359.20
5.2.140.0050.0349.20
5.2.130.0070.0299.16
5.2.120.0080.0289.16
5.2.110.0040.0309.17
5.2.100.0020.0329.16
5.2.90.0050.0349.16
5.2.80.0060.0339.15
5.2.70.0060.0349.16
5.2.60.0000.0369.12
5.2.50.0030.0399.08
5.2.40.0080.0299.06
5.2.30.0080.0299.03
5.2.20.0050.0299.02
5.2.10.0030.0318.93
5.2.00.0030.0318.79
5.1.60.0020.0288.06
5.1.50.0030.0318.05
5.1.40.0050.0298.04
5.1.30.0040.0398.39
5.1.20.0090.0348.41
5.1.10.0080.0308.13
5.1.00.0030.0288.13
5.0.50.0060.0216.61
5.0.40.0050.0186.47
5.0.30.0040.0316.29
5.0.20.0020.0236.25
5.0.10.0070.0196.23
5.0.00.0060.0356.22
4.4.90.0020.0234.78
4.4.80.0030.0204.75
4.4.70.0010.0194.75
4.4.60.0040.0154.75
4.4.50.0060.0144.77
4.4.40.0010.0294.71
4.4.30.0030.0194.76
4.4.20.0050.0174.84
4.4.10.0030.0174.85
4.4.00.0040.0244.75
4.3.110.0040.0154.67
4.3.100.0040.0174.66
4.3.90.0030.0194.63
4.3.80.0030.0264.59
4.3.70.0030.0174.63
4.3.60.0010.0174.63
4.3.50.0030.0164.62
4.3.40.0040.0244.54
4.3.30.0020.0183.28
4.3.20.0010.0183.25
4.3.10.0020.0203.21
4.3.00.0100.01313.60

preferences:
44.31 ms | 400 KiB | 5 Q