3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode([], JSON_FORCE_OBJECT); echo json_encode(['test' => []], JSON_FORCE_OBJECT); echo json_encode(['test' => [1,2,3]], JSON_FORCE_OBJECT);

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)
8.3.60.0070.00716.75
8.3.50.0090.00922.90
8.3.40.0150.00318.84
8.3.30.0140.00318.86
8.3.20.0040.00420.16
8.3.10.0080.00023.66
8.3.00.0040.00417.38
8.2.180.0110.00716.50
8.2.170.0100.00322.96
8.2.160.0070.00720.35
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0100.01026.16
8.2.120.0070.00020.90
8.2.110.0060.00321.00
8.2.100.0080.00417.81
8.2.90.0040.00419.05
8.2.80.0080.00317.97
8.2.70.0090.00017.63
8.2.60.0040.00417.93
8.2.50.0000.00818.10
8.2.40.0000.00720.55
8.2.30.0080.00019.30
8.2.20.0040.00417.74
8.2.10.0040.00418.04
8.2.00.0000.00717.67
8.1.280.0090.00625.92
8.1.270.0040.00423.79
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00721.24
8.1.230.0080.00317.66
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0040.00817.35
8.1.190.0050.00517.23
8.1.180.0040.00418.10
8.1.170.0000.00918.64
8.1.160.0070.00018.87
8.1.150.0000.00720.13
8.1.140.0040.00417.38
8.1.130.0070.00017.72
8.1.120.0040.00417.36
8.1.110.0000.00817.34
8.1.100.0000.00717.43
8.1.90.0000.00717.36
8.1.80.0000.00717.31
8.1.70.0030.00317.38
8.1.60.0060.00317.46
8.1.50.0040.00417.50
8.1.40.0040.00417.43
8.1.30.0040.00417.60
8.1.20.0050.00217.54
8.1.10.0060.00317.41
8.1.00.0050.00217.33
8.0.300.0080.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00818.32
8.0.270.0000.00817.25
8.0.260.0000.00617.25
8.0.250.0000.00717.06
8.0.240.0060.00016.89
8.0.230.0000.00716.95
8.0.220.0040.00416.96
8.0.210.0030.00416.92
8.0.200.0030.00317.01
8.0.190.0030.00316.90
8.0.180.0070.00016.94
8.0.170.0050.00216.87
8.0.160.0070.00016.82
8.0.150.0090.00016.99
8.0.140.0030.00616.78
8.0.130.0060.00013.36
8.0.120.0060.00316.95
8.0.110.0000.00716.87
8.0.100.0040.00416.75
8.0.90.0040.00416.98
8.0.80.0060.01316.89
8.0.70.0050.00216.82
8.0.60.0070.00016.86
8.0.50.0000.00716.83
8.0.30.0120.00716.95
8.0.20.0150.00317.40
8.0.10.0080.00016.88
8.0.00.0080.01016.72
7.4.330.0030.00315.00
7.4.320.0030.00316.53
7.4.300.0030.00316.33
7.4.290.0030.00316.50
7.4.280.0080.00016.41
7.4.270.0000.00716.41
7.4.260.0070.00016.44
7.4.250.0040.00416.46
7.4.240.0020.00516.47
7.4.230.0000.00716.53
7.4.220.0060.01216.46
7.4.210.0100.00716.38
7.4.200.0040.00416.45
7.4.160.0080.00816.38
7.4.150.0100.01017.40
7.4.140.0100.00917.86
7.4.130.0060.01016.33
7.4.120.0110.00816.49
7.4.110.0120.00616.58
7.4.100.0230.00016.37
7.4.90.0070.01016.44
7.4.80.0170.00019.39
7.4.70.0130.00316.49
7.4.60.0070.01316.49
7.4.50.0030.00516.22
7.4.40.0130.00316.47
7.4.30.0170.00416.42
7.4.00.0000.01415.03
7.3.330.0080.00012.98
7.3.320.0030.00313.11
7.3.310.0070.00016.04
7.3.300.0070.00016.00
7.3.290.0070.01416.23
7.3.280.0070.01116.22
7.3.270.0090.01217.40
7.3.260.0170.00016.29
7.3.250.0140.00516.41
7.3.240.0060.00916.21
7.3.230.0060.01016.39
7.3.210.0060.01016.29
7.3.200.0110.00619.39
7.3.190.0070.01016.20
7.3.180.0130.00616.31
7.3.170.0080.00816.36
7.3.160.0030.01316.36
7.2.330.0140.00316.40
7.2.320.0060.01216.50
7.2.310.0030.01316.20
7.2.300.0100.00716.49
7.2.290.0100.00716.38
7.2.80.0090.00616.38
7.2.60.0060.01016.91
7.2.00.0000.01519.41
7.1.200.0130.00015.74
7.1.100.0040.00718.13
7.1.70.0030.00716.97
7.1.60.0130.01019.40
7.1.50.0100.01316.83
7.1.00.0100.06722.37
7.0.200.0150.00914.85
7.0.140.0000.07722.09
7.0.90.0630.07719.88
7.0.80.0370.05319.88
7.0.70.0630.08319.98
7.0.60.0700.03719.85
7.0.50.0570.06720.32
7.0.40.0130.08020.00
7.0.30.0030.09320.14
7.0.20.0100.06720.03
7.0.10.0030.05320.07
7.0.00.0070.08020.08
5.6.280.0000.07720.89
5.6.240.0070.07720.66
5.6.230.0100.08320.68
5.6.220.0100.07720.55
5.6.210.0070.05720.58
5.6.200.0100.07720.94
5.6.190.0100.07321.10
5.6.180.0070.04321.08
5.6.170.0130.06721.17
5.6.160.0030.08021.02
5.6.150.0030.08721.05
5.6.140.0170.06721.04
5.6.130.0100.05021.00
5.6.120.0070.08721.01
5.6.110.0030.05320.94
5.6.100.0130.07721.09
5.6.90.0130.07020.91
5.6.80.0070.07020.51
5.6.70.0170.06720.32
5.6.60.0100.04720.46
5.6.50.0070.04020.56
5.6.40.0000.05320.40
5.6.30.0100.07720.47
5.6.20.0070.04720.39
5.6.10.0000.08720.37
5.6.00.0130.07320.35
5.5.380.0070.08320.42
5.5.370.0030.04020.35
5.5.360.0370.03020.40
5.5.350.0130.07720.42
5.5.340.0100.07720.77
5.5.330.0070.05020.89
5.5.320.0070.07320.91
5.5.310.0130.07720.76
5.5.300.0100.04720.79
5.5.290.0130.08020.88
5.5.280.0100.07720.82
5.5.270.0170.04320.89
5.5.260.0100.07720.86
5.5.250.0100.07720.70
5.5.240.0070.05020.14
5.5.230.0100.05720.24
5.5.220.0070.07720.29
5.5.210.0030.05720.18
5.5.200.0030.05720.23
5.5.190.0070.07720.10
5.5.180.0030.08320.18
5.5.160.0070.04320.23
5.5.150.0100.07020.25
5.5.140.0070.07320.18
5.5.130.0130.06720.24
5.5.120.0030.06320.20
5.5.110.0200.07020.16
5.5.100.0070.05019.98
5.5.90.0070.06720.07
5.5.80.0100.07720.06
5.5.70.0030.06020.05
5.5.60.0100.06720.14
5.5.50.0030.08320.05
5.5.40.0100.07320.05
5.5.30.0070.05320.04
5.5.20.0030.07720.14
5.5.10.0170.07019.98
5.5.00.0070.04720.09
5.4.450.0070.07719.44
5.4.440.0030.05019.35
5.4.430.0100.04319.30
5.4.420.0170.07019.41
5.4.410.0100.07719.22
5.4.400.0000.05018.91
5.4.390.0030.08019.12
5.4.380.0100.07719.03
5.4.370.0100.07019.03
5.4.360.0030.04318.96
5.4.350.0130.06318.98
5.4.340.0100.04718.81
5.4.320.0100.04319.00
5.4.310.0100.07019.07
5.4.300.0200.06318.98
5.4.290.0100.07318.78
5.4.280.0130.04019.09
5.4.270.0070.03719.22
5.4.260.0070.07319.06
5.4.250.0070.03719.19
5.4.240.0100.07319.04
5.4.230.0030.07718.95
5.4.220.0130.07318.90
5.4.210.0030.06319.06
5.4.200.0130.07318.96
5.4.190.0030.07719.04
5.4.180.0170.06719.00
5.4.170.0100.07018.82
5.4.160.0030.04719.00
5.4.150.0100.04319.12
5.4.140.0130.04016.30
5.4.130.0030.08016.23
5.4.120.0030.05316.28
5.4.110.0030.04716.38
5.4.100.0030.04316.23
5.4.90.0100.03016.22
5.4.80.0030.07016.42
5.4.70.0100.04016.20
5.4.60.0030.07316.23
5.4.50.0030.07316.38
5.4.40.0030.07316.45
5.4.30.0070.07316.41
5.4.20.0130.06316.41
5.4.10.0030.04316.23
5.4.00.0030.06315.68
5.3.290.0130.04014.53
5.3.280.0130.07014.58
5.3.270.0100.04314.52
5.3.260.0170.06314.48
5.3.250.0200.06014.59
5.3.240.0100.07714.57
5.3.230.0030.04714.41
5.3.220.0070.07714.52
5.3.210.0130.04714.56
5.3.200.0100.06314.53
5.3.190.0070.03714.54
5.3.180.0100.05314.55
5.3.170.0070.07314.55
5.3.160.0030.07314.43
5.3.150.0100.07314.56
5.3.140.0100.06314.41
5.3.130.0070.08314.50
5.3.120.0070.07714.41
5.3.110.0030.08014.37
5.3.100.0100.05713.99
5.3.90.0030.04714.02
5.3.80.0030.04713.93
5.3.70.0030.05013.92
5.3.60.0100.07714.01
5.3.50.0100.06313.86
5.3.40.0070.07013.95
5.3.30.0100.06313.86
5.3.20.0030.07013.68
5.3.10.0030.07313.64
5.3.00.0100.07313.41
5.2.170.0030.06311.14
5.2.160.0070.06011.13
5.2.150.0000.06710.97
5.2.140.0030.05711.10
5.2.130.0000.03711.13
5.2.120.0030.06011.13
5.2.110.0100.05711.14
5.2.100.0070.06011.02
5.2.90.0070.05711.05
5.2.80.0100.05710.91
5.2.70.0070.06011.02
5.2.60.0100.04310.88
5.2.50.0070.06010.85
5.2.40.0100.05710.85
5.2.30.0000.05010.93
5.2.20.0000.04011.03
5.2.10.0070.04710.80
5.2.00.0000.05010.73
5.1.60.0070.0479.82
5.1.50.0030.05710.02
5.1.40.0100.0479.86
5.1.30.0070.05710.34
5.1.20.0030.06010.25
5.1.10.0030.04310.05
5.1.00.0000.06010.14
5.0.50.0030.0438.54
5.0.40.0000.0478.25
5.0.30.0000.0438.30
5.0.20.0000.0338.00
5.0.10.0030.0478.21
5.0.00.0070.0438.24
4.4.90.0000.0337.48
4.4.80.0030.0337.48
4.4.70.0000.0307.48
4.4.60.0000.0237.48
4.4.50.0000.0377.48
4.4.40.0030.0537.48
4.4.30.0030.0337.48
4.4.20.0000.0337.48
4.4.10.0070.0337.48
4.4.00.0030.0377.48
4.3.110.0030.0237.48
4.3.100.0070.0207.48
4.3.90.0030.0337.48
4.3.80.0000.0577.48
4.3.70.0030.0377.48
4.3.60.0130.0177.48
4.3.50.0000.0377.48
4.3.40.0070.0477.48
4.3.30.0030.0337.48
4.3.20.0100.0177.48
4.3.10.0000.0377.48
4.3.00.0000.0377.48

preferences:
51.85 ms | 401 KiB | 5 Q