3v4l.org

run code in 300+ PHP versions simultaneously
<?php $nonexistent = ""; $value = $nonexistent ?? 'default'; var_dump($value);

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)
8.3.60.0090.00916.63
8.3.50.0070.01420.96
8.3.40.0030.01718.73
8.3.30.0150.00318.55
8.3.20.0090.00620.21
8.3.10.0040.00421.63
8.3.00.0060.00319.45
8.2.180.0000.01416.75
8.2.170.0000.01522.96
8.2.160.0100.00320.35
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0020.00526.16
8.2.120.0050.00317.63
8.2.110.0090.00022.36
8.2.100.0110.00317.42
8.2.90.0040.00419.22
8.2.80.0080.00017.97
8.2.70.0040.00417.25
8.2.60.0040.00417.68
8.2.50.0050.00318.07
8.2.40.0060.00321.19
8.2.30.0040.00419.77
8.2.20.0070.00017.51
8.2.10.0000.00718.03
8.2.00.0000.00718.09
8.1.280.0100.01025.92
8.1.270.0120.00620.28
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00320.27
8.1.230.0040.00817.72
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00818.53
8.1.160.0040.00421.94
8.1.150.0070.00018.80
8.1.140.0080.00017.31
8.1.130.0070.00017.31
8.1.120.0000.00817.38
8.1.110.0040.00417.37
8.1.100.0000.00817.27
8.1.90.0030.00317.26
8.1.80.0030.00417.27
8.1.70.0030.00317.36
8.1.60.0050.00317.47
8.1.50.0050.00317.45
8.1.40.0040.00417.42
8.1.30.0050.00317.57
8.1.20.0050.00217.53
8.1.10.0050.00317.49
8.1.00.0050.00317.42
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.44
8.0.270.0000.00817.29
8.0.260.0030.00316.61
8.0.250.0000.00716.90
8.0.240.0030.00316.86
8.0.230.0000.00816.88
8.0.220.0000.00716.79
8.0.210.0040.00416.69
8.0.200.0030.00316.77
8.0.190.0040.00416.88
8.0.180.0040.00416.69
8.0.170.0080.00016.81
8.0.160.0060.00316.73
8.0.150.0040.00416.85
8.0.140.0040.00416.79
8.0.130.0030.00313.28
8.0.120.0000.00816.74
8.0.110.0000.00816.80
8.0.100.0030.00316.86
8.0.90.0050.00316.63
8.0.80.0060.01216.77
8.0.70.0040.00416.65
8.0.60.0040.00416.70
8.0.50.0040.00416.93
8.0.30.0090.00916.99
8.0.20.0150.01017.40
8.0.10.0070.00016.89
8.0.00.0160.00216.77
7.4.330.0000.00515.08
7.4.320.0000.00616.42
7.4.300.0000.00616.54
7.4.290.0000.00716.44
7.4.280.0080.00016.39
7.4.270.0030.00316.43
7.4.260.0030.00316.50
7.4.250.0030.00316.47
7.4.240.0020.00516.55
7.4.230.0030.00316.25
7.4.220.0070.01116.54
7.4.210.0150.00316.29
7.4.200.0000.00716.55
7.4.160.0090.01316.57
7.4.150.0090.00917.40
7.4.140.0130.00817.86
7.4.130.0050.01316.36
7.4.120.0030.01316.43
7.4.110.0110.00616.38
7.4.100.0130.00316.64
7.4.90.0140.00916.24
7.4.80.0060.01019.39
7.4.70.0030.01216.31
7.4.60.0100.01316.36
7.4.50.0050.00316.38
7.4.40.0060.01016.57
7.4.30.0140.00316.38
7.4.00.0070.00714.84
7.3.330.0050.00013.04
7.3.320.0050.00013.07
7.3.310.0000.00816.31
7.3.300.0000.00616.23
7.3.290.0060.00816.18
7.3.280.0100.00916.15
7.3.270.0090.00917.40
7.3.260.0070.01116.30
7.3.250.0110.00516.30
7.3.240.0100.01316.35
7.3.230.0090.00916.46
7.3.210.0070.01116.29
7.3.200.0080.00816.44
7.3.190.0030.01216.43
7.3.180.0080.01216.36
7.3.170.0070.00916.27
7.3.160.0090.00616.18
7.3.10.0060.00616.30
7.3.00.0090.00416.27
7.2.330.0140.00616.22
7.2.320.0100.01416.22
7.2.310.0090.00616.58
7.2.300.0100.00716.46
7.2.290.0130.00616.23
7.2.130.0030.00716.78
7.2.120.0040.01116.84
7.2.110.0000.01416.57
7.2.100.0000.00816.71
7.2.90.0090.00616.95
7.2.80.0080.00516.61
7.2.70.0000.00916.85
7.2.60.0080.00716.57
7.2.50.0030.00616.54
7.2.40.0060.00616.70
7.2.30.0030.01016.76
7.2.20.0070.01016.78
7.2.10.0040.00416.93
7.2.00.0040.00918.04
7.1.250.0100.00715.77
7.1.200.0040.00815.61
7.1.100.0030.00718.19
7.1.70.0080.00017.19
7.1.60.0070.01020.03
7.1.50.0070.01016.91
7.1.00.0170.06322.30
7.0.200.0310.00714.50
7.0.100.0270.04319.91
7.0.90.0130.05719.91
7.0.80.0330.07319.84
7.0.70.0200.03720.12
7.0.60.0230.06320.06
7.0.50.0030.04020.15
7.0.40.0000.04720.04
7.0.30.0100.04019.95
7.0.20.0070.04020.13
7.0.10.0030.04319.91
7.0.00.0070.03320.09
5.6.280.0030.07721.07
5.6.250.0100.08020.81
5.6.240.0100.04720.66
5.6.230.0030.04320.57
5.6.220.0070.04720.73
5.6.210.0070.05720.58
5.6.200.0130.03021.09
5.6.190.0070.04021.08
5.6.180.0100.04021.00
5.6.170.0070.04020.93
5.6.160.0070.03721.00
5.6.150.0130.08020.96
5.6.140.0070.04021.01
5.6.130.0000.04721.07
5.6.120.0070.04020.95
5.6.110.0070.04021.04
5.6.100.0030.04321.08
5.6.90.0070.05021.14
5.6.80.0100.03320.32
5.6.70.0000.04320.41
5.6.60.0000.03720.37
5.6.50.0130.03320.40
5.6.40.0030.03720.36
5.6.30.0030.04020.49
5.6.20.0030.04020.41
5.6.10.0030.03320.39
5.6.00.0030.03320.35
5.5.380.0100.08320.38
5.5.370.0070.05320.36
5.5.360.0030.05320.48
5.5.350.0130.06720.35
5.5.340.0000.04320.91
5.5.330.0100.03720.88
5.5.320.0000.04320.75
5.5.310.0070.03720.88
5.5.300.0030.04020.64
5.5.290.0000.04320.79
5.5.280.0030.04320.82
5.5.270.0100.03020.63
5.5.260.0030.04320.91
5.5.250.0070.03720.54
5.5.240.0070.03720.25
5.5.230.0070.03020.25
5.5.220.0070.03320.10
5.5.210.0000.04320.11
5.5.200.0030.04020.07
5.5.190.0070.03720.18
5.5.180.0000.04320.08
5.5.160.0030.04020.24
5.5.150.0030.04020.16
5.5.140.0070.03020.26
5.5.130.0030.04020.14
5.5.120.0070.03720.25
5.5.110.0070.03020.25
5.5.100.0070.03020.01
5.5.90.0030.04020.05
5.5.80.0030.06720.05
5.5.70.0100.07320.05
5.5.60.0000.08020.09
5.5.50.0100.05020.05
5.5.40.0070.03720.14
5.5.30.0070.03720.04
5.5.20.0030.06720.08
5.5.10.0000.09020.11
5.5.00.0030.04720.09
5.4.450.0070.03719.21
5.4.440.0000.04319.55
5.4.430.0030.04019.55
5.4.420.0070.04319.44
5.4.410.0100.02719.39
5.4.400.0070.03319.05
5.4.390.0030.03719.04
5.4.380.0000.03718.91
5.4.370.0000.04018.90
5.4.360.0000.04018.85
5.4.350.0030.03719.03
5.4.340.0030.04019.21
5.4.320.0030.03719.03
5.4.310.0000.03319.22
5.4.300.0030.03718.84
5.4.290.0030.03318.89
5.4.280.0070.03718.90
5.4.270.0030.03019.02
5.4.260.0030.03019.23
5.4.250.0070.03319.20
5.4.240.0070.06319.02
5.4.230.0000.08319.20
5.4.220.0070.07019.04
5.4.210.0030.06719.21
5.4.200.0030.07019.17
5.4.190.0030.03718.87
5.4.180.0130.07019.15
5.4.170.0030.03719.04
5.4.160.0030.03719.18
5.4.150.0170.07319.14
5.4.140.0070.04316.44
5.4.130.0100.02716.31
5.4.120.0070.04016.42
5.4.110.0000.08016.49
5.4.100.0070.07716.49
5.4.90.0000.04716.50
5.4.80.0000.03716.25
5.4.70.0000.03716.47
5.4.60.0130.06716.37
5.4.50.0070.07016.34
5.4.40.0000.04016.30
5.4.30.0070.06716.39
5.4.20.0070.06316.39
5.4.10.0130.05716.40
5.4.00.0070.04015.84

preferences:
51.59 ms | 401 KiB | 5 Q