3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A implements JsonSerializable { public function jsonSerialize() { return new A; } } echo "AAA\n"; var_dump( json_encode( new A ) ); echo "BBB\n";

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)
8.3.60.0160.03232.24
8.3.50.0250.02431.56
8.3.40.0360.02033.09
8.3.30.0240.02432.94
8.3.20.0120.01233.02
8.3.10.0130.01033.95
8.3.00.0220.00336.10
8.2.180.0320.01933.48
8.2.170.0300.02335.67
8.2.160.0280.01437.38
8.2.150.0170.00735.63
8.2.140.0150.00437.92
8.2.130.0100.01038.20
8.2.120.0130.00637.02
8.2.110.0180.01137.34
8.2.100.0290.01635.02
8.2.90.0160.01035.09
8.2.80.0100.01734.38
8.2.70.0220.01334.38
8.2.60.0190.00834.79
8.2.50.0170.01734.38
8.2.40.0030.02235.22
8.2.30.0070.01736.77
8.2.20.0190.00334.51
8.2.10.0100.01334.60
8.2.00.0100.01634.64
8.1.280.0420.01635.05
8.1.270.0140.01039.05
8.1.260.0070.01737.33
8.1.250.0130.00739.96
8.1.240.0160.01339.05
8.1.230.0180.02137.77
8.1.220.0070.01834.54
8.1.210.0120.01935.51
8.1.200.0140.01434.23
8.1.190.0120.01234.41
8.1.180.0130.01334.53
8.1.170.0130.01335.59
8.1.160.0030.02135.86
8.1.150.0070.02435.65
8.1.140.0130.01034.41
8.1.130.0090.01334.78
8.1.120.0070.01534.45
8.1.110.0090.01234.42
8.1.100.0100.01334.41
8.1.90.0100.01334.47
8.1.80.0160.00634.31
8.1.70.0070.01434.46
8.1.60.0040.02134.55
8.1.50.0100.01334.34
8.1.40.0130.01034.49
8.1.30.0070.01734.59
8.1.20.0070.01734.54
8.1.10.0070.01534.47
8.1.00.0070.01834.48
8.0.300.0190.00637.04
8.0.290.0100.01633.68
8.0.280.0100.01335.37
8.0.270.0200.01034.04
8.0.260.0070.01733.73
8.0.250.0140.01133.79
8.0.240.0250.01133.79
8.0.230.0110.01433.69
8.0.220.0030.01933.79
8.0.210.0100.02033.72
8.0.200.0000.02233.71
8.0.190.0100.01333.66
8.0.180.0130.01033.77
8.0.170.0110.01433.65
8.0.160.0100.01333.74
8.0.150.0160.00633.67
8.0.140.0230.01733.53
8.0.130.0040.01830.21
8.0.120.0130.01033.58
8.0.110.0070.01733.71
8.0.100.0200.00333.74
8.0.90.0070.01733.57
8.0.80.0170.02833.71
8.0.70.0070.01733.54
8.0.60.0130.01033.52
8.0.50.0030.02033.66
8.0.30.0340.02233.76
8.0.20.0270.02833.94
8.0.10.0070.01733.69
8.0.00.0230.04433.64
7.4.330.0030.01332.70
7.4.320.0060.01933.36
7.4.300.0110.01133.21
7.4.290.0030.02033.43
7.4.280.0100.01433.27
7.4.270.0130.01033.19
7.4.260.0070.01330.14
7.4.250.0070.01633.14
7.4.240.0060.01633.30
7.4.230.0070.01733.46
7.4.220.0380.02233.29
7.4.210.0210.02633.36
7.4.200.0090.01333.20
7.4.190.0090.01333.43
7.4.160.0190.02933.45
7.4.150.0280.03133.29
7.4.140.0280.03733.39
7.4.130.0310.02933.27
7.4.120.0320.03333.41
7.4.110.0320.03833.44
7.4.100.0230.02933.65
7.4.90.0310.04133.27
7.4.80.0130.03933.34
7.4.70.0330.01833.33
7.4.60.0320.04233.41
7.4.50.0110.01833.41
7.4.40.0110.02233.51
7.4.30.0120.04433.32
7.4.00.0140.02431.77
7.3.330.0100.01129.98
7.3.320.0100.01329.98
7.3.310.0130.01333.01
7.3.300.0070.01533.09
7.3.290.0570.03633.14
7.3.280.0270.02533.10
7.3.270.0200.03433.09
7.3.260.0240.03433.30
7.3.250.0320.02833.20
7.3.240.0130.03933.36
7.3.230.0260.02733.00
7.3.210.0190.03533.22
7.3.200.0230.03333.16
7.3.190.0240.04833.22
7.3.180.0270.02433.13
7.3.170.0200.03133.09
7.3.160.0210.03133.14
7.3.120.0130.02031.60
7.2.330.0380.03133.45
7.2.320.0300.02733.39
7.2.310.0300.04733.39
7.2.300.0260.03933.53
7.2.290.0260.02733.52
7.1.70.0030.01732.80
7.1.60.0200.03433.31
7.1.50.0200.03332.54
7.1.00.0070.04038.41
7.0.200.0790.03031.89
7.0.140.0030.09338.16
7.0.90.0270.07736.78
7.0.80.1570.09336.96
7.0.70.0130.06036.80
7.0.60.2300.07336.88
7.0.50.2170.09037.25
7.0.40.0130.07728.04
7.0.30.0070.06728.05
7.0.20.0200.06728.15
7.0.10.0070.07028.04
7.0.00.0000.08028.06
5.6.280.0000.08330.98
5.6.240.0100.08330.46
5.6.230.0170.07730.51
5.6.220.0130.04030.33
5.6.210.0200.06730.47
5.6.200.0070.05730.81
5.6.190.0200.08330.91
5.6.180.0130.08031.04
5.6.170.0100.08730.82
5.6.160.0130.07331.04
5.6.150.0130.08331.04
5.6.140.0200.07730.80
5.6.130.0100.09330.98
5.6.120.0230.06030.95
5.6.110.0200.08031.03
5.6.100.0100.07330.88
5.6.90.0070.09730.87
5.6.80.0030.04730.18
5.6.70.0170.08330.21
5.6.60.0070.08330.25
5.6.50.0130.11046.63
5.6.40.0200.11346.52
5.6.30.0270.11346.43
5.6.20.0100.06746.56
5.6.10.0170.07046.64
5.6.00.0170.06346.42
5.5.380.0230.11046.64
5.5.370.0070.10746.47
5.5.360.0230.10346.48
5.5.350.0230.12046.49
5.5.340.0100.07747.06
5.5.330.0130.09047.04
5.5.320.0230.10347.04
5.5.310.0130.11047.05
5.5.300.0100.13047.05
5.5.290.0130.07346.93
5.5.280.0100.12046.90
5.5.270.0200.07046.92
5.5.260.0330.11347.05
5.5.250.0200.11746.77
5.5.240.0230.09746.39
5.5.230.0170.12346.42
5.5.220.0430.09746.14
5.5.210.0100.08046.39
5.5.200.0170.10746.38
5.5.190.0100.11046.25
5.5.180.0230.05746.26
5.5.160.0170.06046.38
5.5.150.0200.05346.20
5.5.140.0130.06046.30
5.5.130.0170.05746.25
5.5.120.0100.05346.35
5.5.110.0130.06046.32
5.5.100.0100.06346.21
5.5.90.0130.06346.11
5.5.80.0130.07746.12
5.5.70.0130.11746.14
5.5.60.0070.06746.28
5.5.50.0300.07346.14
5.5.40.0100.06346.13
5.5.30.0070.06346.16
5.5.20.0130.06746.19
5.5.10.0130.08346.10
5.5.00.0170.06046.23
5.4.450.0130.12745.23
5.4.440.0270.10345.51
5.4.430.0200.10045.45
5.4.420.0170.12045.36
5.4.410.0230.09045.29
5.4.400.0200.10345.10
5.4.390.0170.10345.27
5.4.380.0270.08745.17
5.4.370.0330.09345.13
5.4.360.0200.09345.11
5.4.350.0170.09745.08
5.4.340.0130.06345.08
5.4.320.0130.08344.93
5.4.310.0100.06745.13
5.4.300.0070.06344.91
5.4.290.0170.05745.12
5.4.280.0030.07344.90
5.4.270.0100.06345.23
5.4.260.0170.08345.02
5.4.250.0100.05745.02
5.4.240.0230.08745.17
5.4.230.0070.06745.28
5.4.220.0270.04345.16
5.4.210.0100.06745.09
5.4.200.0170.08745.10
5.4.190.0030.06745.09
5.4.180.0070.06045.10
5.4.170.0070.06745.18
5.4.160.0100.08045.14
5.4.150.0100.06345.05
5.4.140.0070.06742.52
5.4.130.0100.05742.53
5.4.120.0070.06342.48
5.4.110.0200.05042.40
5.4.100.0100.06042.57
5.4.90.0100.05742.45
5.4.80.0130.05342.57
5.4.70.0170.05342.50
5.4.60.0000.06342.57
5.4.50.0070.06742.47
5.4.40.0130.09342.39
5.4.30.0130.06736.09
5.4.20.0370.06036.11
5.4.10.0170.10036.23
5.4.00.0100.07735.41
5.3.290.0000.04014.77
5.3.280.0030.04014.54
5.3.270.0070.03314.69
5.3.260.0000.04014.70
5.3.250.0030.03714.74
5.3.240.0070.03314.57
5.3.230.0000.04314.71
5.3.220.0030.04014.65
5.3.210.0070.04014.55
5.3.200.0070.03314.61
5.3.190.0070.04314.53
5.3.180.0000.03714.70
5.3.170.0000.04014.62
5.3.160.0000.05314.62
5.3.150.0000.04314.65
5.3.140.0030.03714.61
5.3.130.0070.03714.55
5.3.120.0030.06714.66
5.3.110.0000.08314.53
5.3.100.0100.04314.00
5.3.90.0100.04714.13
5.3.80.0030.04014.02
5.3.70.0000.04313.95
5.3.60.0070.07314.00
5.3.50.0130.05313.92
5.3.40.0070.07714.01
5.3.30.0170.06313.92
5.3.20.0030.05713.74
5.3.10.0100.07013.54
5.3.00.0070.04013.56
5.2.170.0130.05711.00
5.2.160.0030.06311.21
5.2.150.0130.05311.25
5.2.140.0000.06311.13
5.2.130.0030.03311.13
5.2.120.0100.03711.23
5.2.110.0030.06010.96
5.2.100.0100.05711.01
5.2.90.0100.02711.02
5.2.80.0100.05311.11
5.2.70.0030.03710.96
5.2.60.0000.05011.14
5.2.50.0100.05310.95
5.2.40.0030.05011.05
5.2.30.0030.04311.05
5.2.20.0000.05711.09
5.2.10.0130.05310.96
5.2.00.0030.06010.76
5.1.60.0070.03010.55
5.1.50.0070.05010.55
5.1.40.0030.03310.55
5.1.30.0030.02710.55
5.1.20.0030.02710.55
5.1.10.0070.05710.55
5.1.00.0030.06310.55
5.0.50.0100.04010.55
5.0.40.0030.04010.55
5.0.30.0000.06710.55
5.0.20.0030.04010.55
5.0.10.0000.04010.55
5.0.00.0000.06710.55
4.4.90.0070.02010.55
4.4.80.0100.03010.55
4.4.70.0070.02010.55
4.4.60.0100.03010.55
4.4.50.0030.02710.55
4.4.40.0100.05010.55
4.4.30.0000.03310.55
4.4.20.0030.03310.55
4.4.10.0000.03710.55
4.4.00.0000.05710.55
4.3.110.0070.03010.55
4.3.100.0000.03010.55
4.3.90.0000.03310.55
4.3.80.0030.03310.55
4.3.70.0030.03310.55
4.3.60.0070.03010.55
4.3.50.0000.02710.55
4.3.40.0030.03310.55
4.3.30.0030.02310.55
4.3.20.0000.03710.55
4.3.10.0000.03010.55
4.3.00.0030.03010.55

preferences:
52.6 ms | 401 KiB | 5 Q