3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a['b'] = $a['b'] ?? 0; echo $a['b'];

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)
8.5.30.0110.00719.58
8.5.20.0080.00619.78
8.5.10.0170.00816.49
8.5.00.0160.00718.26
8.4.180.0170.00619.75
8.4.170.0140.00619.73
8.4.160.0140.00522.25
8.4.150.0080.00516.87
8.4.140.0170.00717.50
8.4.130.0220.00617.58
8.4.120.0250.00919.27
8.4.110.0220.00420.09
8.4.100.0200.00317.94
8.4.90.0140.00617.65
8.4.80.0170.00617.71
8.4.70.0120.00517.80
8.4.60.0190.00820.86
8.4.50.0150.00818.70
8.4.40.0230.00417.79
8.4.30.0160.00917.82
8.4.20.0210.01417.58
8.4.10.0160.00818.44
8.3.300.0270.00518.20
8.3.290.0090.00719.51
8.3.280.0160.00818.20
8.3.270.0220.00416.38
8.3.260.0220.00916.36
8.3.250.0230.00617.50
8.3.240.0270.00716.29
8.3.230.0200.00716.55
8.3.220.0230.01016.76
8.3.210.0230.00916.46
8.3.200.0210.00716.33
8.3.190.0210.00816.61
8.3.180.0230.00917.34
8.3.170.0250.00916.42
8.3.160.0280.00816.63
8.3.150.0270.00816.75
8.3.140.0220.00716.47
8.3.130.0170.01016.52
8.3.120.0200.00418.03
8.3.110.0220.00616.59
8.3.100.0160.00616.48
8.3.90.0140.00916.43
8.3.80.0190.00417.64
8.3.70.0180.00217.07
8.3.60.0180.00616.49
8.3.50.0150.00917.02
8.3.40.0160.00817.99
8.3.30.0130.00517.96
8.3.20.0140.00418.92
8.3.10.0110.00519.64
8.3.00.0090.00319.06
8.2.300.0190.00917.79
8.2.290.0150.00418.32
8.2.280.0130.00617.51
8.2.270.0200.00616.42
8.2.260.0190.00618.54
8.2.250.0150.00916.51
8.2.240.0220.00916.53
8.2.230.0200.00317.92
8.2.220.0200.00719.02
8.2.210.0180.00419.90
8.2.200.0170.00617.72
8.2.190.0180.00816.60
8.2.180.0190.00817.08
8.2.170.0200.00619.47
8.2.160.0200.00618.27
8.2.150.0190.00819.89
8.2.140.0180.00419.95
8.2.130.0190.00320.45
8.2.120.0200.00218.29
8.2.110.0170.00619.67
8.2.100.0190.00418.67
8.2.90.0200.00718.48
8.2.80.0200.00618.47
8.2.70.0190.00535.54
8.2.60.0170.00735.58
8.2.50.0180.00635.56
8.2.40.0130.00736.00
8.2.30.0140.00635.83
8.2.20.0160.00735.64
8.2.10.0190.00435.59
8.2.00.0160.00735.61
8.1.340.0220.00819.96
8.1.330.0240.00717.08
8.1.320.0220.00916.20
8.1.310.0200.00816.43
8.1.300.0210.00716.06
8.1.290.0180.00616.92
8.1.280.0180.00919.92
8.1.270.0200.00419.81
8.1.260.0150.00820.33
8.1.250.0180.00521.58
8.1.240.0190.00918.93
8.1.230.0240.00718.02
8.1.220.0180.00518.02
8.1.210.0170.00918.54
8.1.200.0190.00735.28
8.1.190.0180.00635.23
8.1.180.0190.00535.38
8.1.170.0140.00835.37
8.1.160.0160.00435.57
8.1.150.0160.00536.51
8.1.140.0180.00535.79
8.1.130.0150.00735.73
8.1.120.0130.00535.39
8.1.110.0160.00535.27
8.1.100.0160.00635.32
8.1.90.0140.00635.25
8.1.80.0160.00635.55
8.1.70.0140.00635.39
8.1.60.0130.00835.47
8.1.50.0130.00635.63
8.1.40.0130.00835.43
8.1.30.0150.00635.56
8.1.20.0140.00735.49
8.1.10.0160.00635.40
8.1.00.0140.00833.10
8.0.300.0150.00817.81
8.0.290.0160.00535.08
8.0.280.0150.00535.09
8.0.270.0140.00534.91
8.0.260.0150.00634.78
8.0.250.0150.00434.91
8.0.240.0170.00334.94
8.0.230.0130.00735.03
8.0.220.0150.00534.81
8.0.210.0170.00634.76
8.0.200.0140.00734.85
8.0.190.0160.00534.85
8.0.180.0150.00534.85
8.0.170.0140.00634.87
8.0.160.0170.00434.88
8.0.150.0170.00634.81
8.0.140.0170.00734.78
8.0.130.0160.00630.44
8.0.120.0140.00730.77
8.0.110.0130.00830.80
8.0.100.0170.00330.80
8.0.90.0180.00630.76
8.0.80.0180.00530.76
8.0.70.0160.00530.71
8.0.60.0140.00630.73
8.0.50.0150.00530.75
8.0.30.0150.00628.33
8.0.20.0140.00727.52
8.0.10.0180.00530.89
8.0.00.0120.00632.15
7.4.330.0160.00434.22
7.4.320.0110.00834.67
7.4.300.0120.00734.66
7.4.290.0110.00834.64
7.4.280.0160.00434.65
7.4.270.0130.00734.66
7.4.260.0130.00730.59
7.4.250.0130.00630.58
7.4.240.0140.00530.62
7.4.230.0160.00430.57
7.4.220.0140.00631.01
7.4.210.0130.00531.05
7.4.200.0120.00631.01
7.4.190.0140.00732.35
7.4.180.0150.00632.40
7.4.160.0120.00629.18
7.4.150.0150.00530.76
7.4.140.0140.00428.42
7.4.130.0160.00530.79
7.4.120.0130.00627.98
7.4.110.0140.00630.57
7.4.100.0140.00830.58
7.4.90.0160.00530.53
7.4.80.0150.00530.95
7.4.70.0170.00630.59
7.4.60.0160.00730.60
7.4.50.0170.00530.48
7.4.40.0160.00530.53
7.4.30.0160.00630.56
7.4.20.0170.00532.29
7.4.10.0160.00632.29
7.4.00.0150.00430.42
7.3.330.0120.00530.02
7.3.320.0140.00530.26
7.3.310.0140.00630.36
7.3.300.0170.00430.56
7.3.290.0140.00627.81
7.3.280.0120.00823.74
7.3.270.0160.00630.58
7.3.260.0160.00629.06
7.3.250.0170.00527.89
7.3.240.0150.00629.17
7.3.230.0130.00630.43
7.3.220.0180.00432.07
7.3.210.0160.00530.34
7.3.200.0140.00730.30
7.3.190.0140.00430.33
7.3.180.0150.00330.30
7.3.170.0130.00530.36
7.3.160.0160.00330.35
7.3.150.0170.00532.09
7.3.140.0160.00432.09
7.3.130.0190.00532.14
7.3.120.0190.00532.08
7.3.110.0190.00532.09
7.3.100.0160.00731.95
7.3.90.0170.00532.26
7.3.80.0160.00732.21
7.3.70.0200.00432.20
7.3.60.0160.00625.46
7.3.50.0130.00624.02
7.3.40.0120.00824.01
7.3.30.0120.00724.06
7.3.20.0150.00625.05
7.3.10.0180.00625.05
7.3.00.0110.00725.00
7.2.340.0120.00632.74
7.2.330.0150.00430.51
7.2.320.0150.00530.57
7.2.310.0160.00430.52
7.2.300.0140.00630.55
7.2.290.0140.00430.55
7.2.280.0130.00632.31
7.2.270.0140.00532.31
7.2.260.0130.00332.25
7.2.250.0140.00632.26
7.2.240.0190.00532.53
7.2.230.0150.00632.35
7.2.220.0150.00532.28
7.2.210.0150.00532.26
7.2.200.0150.00732.37
7.2.190.0150.00625.61
7.2.180.0110.00824.32
7.2.170.0120.00724.26
7.2.160.0120.00624.25
7.2.150.0150.00625.20
7.2.140.0150.00625.21
7.2.130.0150.00725.21
7.2.120.0150.00625.25
7.2.110.0130.00825.19
7.2.100.0130.00825.20
7.2.90.0140.00825.27
7.2.80.0130.00725.22
7.2.70.0150.00625.25
7.2.60.0130.00624.75
7.2.50.0160.00625.23
7.2.40.0150.00825.26
7.2.30.0170.00625.24
7.2.20.0140.01025.33
7.2.10.0140.00725.35
7.2.00.0190.00624.92
7.1.330.0140.00532.79
7.1.320.0150.00532.76
7.1.310.0140.00732.79
7.1.300.0150.00725.56
7.1.290.0130.00725.60
7.1.280.0180.00624.28
7.1.270.0130.00724.24
7.1.260.0150.00624.21
7.1.250.0150.00524.22
7.1.240.0180.00624.24
7.1.230.0180.00624.29
7.1.220.0140.00824.24
7.1.210.0150.00624.20
7.1.200.0130.00623.70
7.1.190.0150.00624.30
7.1.180.0170.00624.26
7.1.170.0150.00624.37
7.1.160.0180.00624.22
7.1.150.0170.00524.30
7.1.140.0140.00624.20
7.1.130.0140.00824.21
7.1.120.0140.00824.20
7.1.110.0150.00624.26
7.1.100.0150.00724.28
7.1.90.0150.00724.40
7.1.80.0140.00824.37
7.1.70.0160.00623.82
7.1.60.0160.00624.89
7.1.50.0160.00724.92
7.1.40.0240.00624.84
7.1.30.0360.00724.79
7.1.20.0160.00624.79
7.1.10.0120.00723.68
7.1.00.0280.00623.67
7.0.330.0200.00524.14
7.0.320.0140.00824.08
7.0.310.0160.00624.09
7.0.300.0150.00724.16
7.0.290.0170.00624.12
7.0.280.0220.00524.11
7.0.270.0150.00624.13
7.0.260.0160.00724.11
7.0.250.0140.00724.19
7.0.240.0150.00624.25
7.0.230.0170.00624.23
7.0.220.0150.00524.22
7.0.210.0160.00524.15
7.0.200.0140.00723.57
7.0.190.0140.00823.62
7.0.180.0160.00623.56
7.0.170.0280.00623.54
7.0.160.0290.00523.50
7.0.150.0140.00523.57
7.0.140.0320.00723.52
7.0.130.0130.00623.61
7.0.120.0120.00723.57
7.0.110.0270.00723.52
7.0.100.0130.00723.54
7.0.90.0190.00623.50
7.0.80.0180.00523.51
7.0.70.0120.00823.51
7.0.60.0260.00623.45
7.0.50.0140.00823.59
7.0.40.0260.00623.57
7.0.30.0240.00723.54
7.0.20.0140.00823.67
7.0.10.0270.00623.60
7.0.00.0130.00623.57
5.6.400.0120.00723.44
5.6.390.0130.00723.45
5.6.380.0110.00723.40
5.6.370.0170.00431.76
5.6.360.0130.00531.78
5.6.350.0140.00531.75
5.6.340.0110.00631.76
5.6.330.0130.00331.62
5.6.320.0120.00531.69
5.6.310.0120.00531.71
5.6.300.0130.00431.65
5.6.290.0100.00531.71
5.6.280.0150.00331.73
5.6.270.0140.00331.72
5.6.260.0120.00431.70
5.6.250.0130.00331.72
5.6.240.0110.00331.74
5.6.230.0100.00531.83
5.6.220.0120.00331.75
5.6.210.0120.00431.76
5.6.200.0140.00231.81
5.6.190.0120.00431.82
5.6.180.0110.00431.78
5.6.170.0110.00431.78
5.6.160.0140.00331.80
5.6.150.0110.00531.82
5.6.140.0110.00431.83
5.6.130.0130.00431.75
5.6.120.0120.00431.78
5.6.110.0120.00831.67
5.6.100.0130.00431.71
5.6.90.0110.00631.74
5.6.80.0110.00631.71
5.6.70.0130.00531.78
5.6.60.0110.00531.80
5.6.50.0120.00531.71
5.6.40.0110.00631.77
5.6.30.0110.00631.71
5.6.20.0160.00431.65
5.6.10.0120.00431.66
5.6.00.0140.00431.72

preferences:
58.8 ms | 1976 KiB | 5 Q