3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'wasd'; var_dump(isset($var['waa']), $var['waa']);

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)
8.3.60.0070.00716.63
8.3.50.0110.00716.65
8.3.40.0120.00318.97
8.3.30.0040.01218.53
8.3.20.0040.00418.72
8.3.10.0060.00320.46
8.3.00.0080.00019.50
8.2.180.0090.01216.75
8.2.170.0070.01022.96
8.2.160.0100.00721.19
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00020.87
8.2.110.0030.00620.54
8.2.100.0040.00817.91
8.2.90.0080.00018.12
8.2.80.0000.00819.21
8.2.70.0040.00417.63
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0050.00318.16
8.2.30.0000.01018.06
8.2.20.0040.00417.73
8.2.10.0020.00517.75
8.2.00.0070.00017.70
8.1.280.0130.00625.92
8.1.270.0070.00024.66
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00822.09
8.1.230.0090.00320.97
8.1.220.0000.00917.74
8.1.210.0030.00518.87
8.1.200.0030.00617.23
8.1.190.0000.00717.41
8.1.180.0120.00018.10
8.1.170.0000.00818.84
8.1.160.0000.00818.88
8.1.150.0040.00418.59
8.1.140.0040.00417.43
8.1.130.0050.00317.87
8.1.120.0040.00417.26
8.1.110.0050.00217.29
8.1.100.0030.00417.39
8.1.90.0040.00417.39
8.1.80.0040.00417.32
8.1.70.0000.00717.37
8.1.60.0000.00717.50
8.1.50.0050.00217.43
8.1.40.0040.00417.50
8.1.30.0040.00417.69
8.1.20.0040.00417.65
8.1.10.0000.00717.64
8.1.00.0040.00717.47
8.0.300.0000.00720.03
8.0.290.0050.00316.75
8.0.280.0000.00818.39
8.0.270.0040.00417.07
8.0.260.0000.00716.71
8.0.250.0000.00716.87
8.0.240.0040.00417.02
8.0.230.0060.00317.01
8.0.220.0030.00316.80
8.0.210.0070.00016.84
8.0.200.0030.00316.93
8.0.190.0080.00016.94
8.0.180.0030.00316.95
8.0.170.0080.00016.89
8.0.160.0020.00516.92
8.0.150.0040.00416.73
8.0.140.0000.00716.68
8.0.130.0000.00613.36
8.0.120.0000.00716.76
8.0.110.0040.00416.81
8.0.100.0030.00516.72
8.0.90.0060.00316.84
8.0.80.0100.01016.93
8.0.70.0060.00316.82
8.0.60.0040.00416.77
8.0.50.0030.00616.83
8.0.30.0110.00817.22
8.0.20.0120.01017.23
8.0.10.0000.00717.05
8.0.00.0110.01116.79
7.4.330.0040.00012.98
7.4.320.0000.00616.47
7.4.300.0000.00616.44
7.4.290.0030.00316.49
7.4.280.0040.00416.34
7.4.270.0030.00516.43
7.4.260.0030.00313.21
7.4.250.0000.00816.52
7.4.240.0030.00316.39
7.4.230.0030.00316.24
7.4.220.0090.01316.49
7.4.210.0060.00816.50
7.4.200.0000.00716.46
7.4.190.0050.00316.61
7.4.160.0070.01416.42
7.4.150.0030.01416.36
7.4.140.0090.00816.48
7.4.130.0090.00916.63
7.4.120.0130.00616.51
7.4.110.0030.01416.37
7.4.100.0110.00716.29
7.4.90.0000.01716.47
7.4.80.0070.01119.39
7.4.70.0060.00916.45
7.4.60.0060.00916.46
7.4.50.0030.00916.16
7.4.40.0090.00616.21
7.4.30.0110.00616.62
7.4.00.0100.00714.66
7.3.330.0050.00313.26
7.3.320.0050.00013.13
7.3.310.0030.00316.21
7.3.300.0030.00516.23
7.3.290.0090.00616.42
7.3.280.0090.00916.35
7.3.270.0130.00316.37
7.3.260.0100.00816.53
7.3.250.0110.01016.45
7.3.240.0030.01916.57
7.3.230.0110.00616.42
7.3.210.0070.01116.37
7.3.200.0100.01016.40
7.3.190.0100.01316.22
7.3.180.0070.01016.45
7.3.170.0060.00916.31
7.3.160.0130.00616.31
7.3.120.0030.01114.82
7.3.110.0040.01214.63
7.3.100.0040.00814.77
7.3.90.0150.00014.98
7.3.80.0070.00714.88
7.3.70.0120.00314.50
7.3.60.0170.00014.62
7.3.50.0070.00714.91
7.3.40.0030.00914.73
7.3.30.0040.01014.54
7.3.20.0060.00916.64
7.3.10.0070.00716.74
7.3.00.0040.00816.75
7.2.330.0150.00616.66
7.2.320.0100.01016.52
7.2.310.0120.01216.46
7.2.300.0110.01016.61
7.2.290.0120.00416.29
7.2.250.0120.00615.21
7.2.240.0070.00714.73
7.2.230.0030.01214.84
7.2.220.0040.00815.03
7.2.210.0070.00715.05
7.2.200.0030.01015.10
7.2.190.0040.00815.02
7.2.180.0000.01514.88
7.2.170.0000.00914.92
7.2.00.0070.01119.24
7.1.330.0060.00915.79
7.1.320.0070.00715.80
7.1.310.0030.00915.67
7.1.300.0000.01015.81
7.1.290.0060.00915.96
7.1.280.0050.00515.86
7.1.270.0070.00715.89
7.1.260.0000.01315.85
7.1.100.0070.00417.75
7.1.70.0000.00716.81
7.1.60.0100.00719.40
7.1.50.0040.01816.97
7.1.00.0070.05022.45
7.0.200.0070.00016.65
7.0.140.0130.06321.99
7.0.120.0070.07022.25
7.0.60.0400.06320.03
7.0.50.0070.04717.90
7.0.40.0130.08320.04
7.0.30.0330.07720.21
7.0.20.0200.07319.97
7.0.10.0070.08720.13
7.0.00.0030.05720.11
5.6.210.0070.07720.72
5.6.200.0070.07018.21
5.6.190.0130.08020.56
5.6.180.0200.06720.56
5.6.170.0170.04320.62
5.6.160.0000.07720.49
5.6.150.0000.05018.17
5.6.140.0030.04718.11
5.6.130.0100.05718.21
5.6.120.0070.04321.11
5.6.110.0100.07320.97
5.6.100.0030.04020.97
5.6.90.0070.07320.99
5.6.80.0070.08020.39
5.5.350.0100.03720.29
5.5.340.0030.04018.03
5.5.330.0100.05020.56
5.5.320.0330.08020.29
5.5.310.0300.08020.21
5.5.300.0070.08018.03
5.5.290.0070.05318.02
5.5.280.0070.03720.67
5.5.270.0100.08020.76
5.5.260.0100.04720.96
5.5.250.0100.07320.65
5.5.240.0170.07320.11
5.4.450.0170.03319.24
5.4.440.0030.08719.13
5.4.430.0070.05319.46
5.4.420.0000.08319.50
5.4.410.0170.04318.97
5.4.400.0130.06719.00
5.4.390.0100.06018.79
5.4.380.0030.06018.92
5.4.370.0170.03018.91
5.4.360.0000.08319.14
5.4.350.0070.04318.80
5.4.340.0130.06019.14
5.4.320.0030.08319.14
5.4.310.0000.07319.09
5.4.300.0030.03718.78
5.4.290.0030.06019.14
5.4.280.0070.07318.95
5.4.270.0070.04719.07
5.4.260.0030.04719.07
5.4.250.0100.05319.08
5.4.240.0100.07019.13
5.4.230.0130.06719.17
5.4.220.0100.07319.07
5.4.210.0070.07019.18
5.4.200.0070.07718.91
5.4.190.0070.06019.16
5.4.180.0000.04018.83
5.4.170.0200.05718.86
5.4.160.0070.03719.16
5.4.150.0070.04018.98
5.4.140.0070.04716.29
5.4.130.0000.04016.34
5.4.120.0030.03716.26
5.4.110.0030.06316.23
5.4.100.0000.07716.23
5.4.90.0000.08316.29
5.4.80.0070.03316.39
5.4.70.0070.03316.22
5.4.60.0130.07016.38
5.4.50.0030.03716.38
5.4.40.0070.07316.26
5.4.30.0130.05016.34
5.4.20.0030.05716.38
5.4.10.0100.07716.31
5.4.00.0000.07315.89
5.3.290.0100.04314.60
5.3.280.0070.06314.55
5.3.270.0130.07314.53
5.3.260.0100.07014.54
5.3.250.0130.04314.50
5.3.240.0030.04014.69
5.3.230.0070.03714.52
5.3.220.0070.03714.57
5.3.210.0070.06014.44
5.3.200.0070.04714.64
5.3.190.0070.06314.36
5.3.180.0030.04314.45
5.3.170.0100.03714.52
5.3.160.0100.07314.46
5.3.150.0070.04014.66
5.3.140.0130.07014.49
5.3.130.0030.04714.33
5.3.120.0070.07014.47
5.3.110.0100.07314.63
5.3.100.0130.06314.01
5.3.90.0100.07313.96
5.3.80.0100.07313.95
5.3.70.0070.07713.96
5.3.60.0070.07713.93
5.3.50.0070.07713.91
5.3.40.0100.07013.96
5.3.30.0100.04313.85
5.3.20.0000.04713.62
5.3.10.0100.05013.62
5.3.00.0130.06713.47
5.2.170.0030.06311.08
5.2.160.0030.04010.96
5.2.150.0070.05010.96
5.2.140.0000.03711.07
5.2.130.0070.02711.25
5.2.120.0130.04311.09
5.2.110.0100.03711.03
5.2.100.0100.03311.00
5.2.90.0100.03311.18
5.2.80.0070.06011.24
5.2.70.0000.07010.91
5.2.60.0030.03711.03
5.2.50.0070.06311.09
5.2.40.0100.04310.98
5.2.30.0070.05010.82
5.2.20.0030.06310.89
5.2.10.0000.06310.71
5.2.00.0000.05310.71
5.1.60.0030.02310.06
5.1.50.0030.0309.96
5.1.40.0070.0479.94
5.1.30.0100.05310.29
5.1.20.0100.04010.36
5.1.10.0130.04010.07
5.1.00.0070.03710.01
5.0.50.0030.0438.38
5.0.40.0070.0338.42
5.0.30.0030.0678.20
5.0.20.0000.0438.20
5.0.10.0070.0438.20
5.0.00.0000.0508.20
4.4.90.0000.0308.20
4.4.80.0070.0208.20
4.4.70.0030.0238.20
4.4.60.0070.0238.20
4.4.50.0000.0378.20
4.4.40.0000.0278.20
4.4.30.0030.0378.20
4.4.20.0000.0308.20
4.4.10.0030.0378.20
4.4.00.0000.0578.20
4.3.110.0000.0338.20
4.3.100.0000.0308.20
4.3.90.0030.0238.20
4.3.80.0000.0608.20
4.3.70.0170.0108.20
4.3.60.0070.0138.20
4.3.50.0030.0278.20
4.3.40.0000.0308.20
4.3.30.0030.0338.20
4.3.20.0000.0408.20
4.3.10.0000.0208.20
4.3.00.0030.0238.20

preferences:
46.4 ms | 401 KiB | 5 Q