3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(["foo" => chr(132), "bar" => "bar"]);

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)
8.3.40.0060.00918.58
8.3.30.0000.01719.14
8.3.20.0040.00420.09
8.3.10.0030.00623.61
8.3.00.0030.00620.95
8.2.170.0070.00722.96
8.2.160.0070.00720.39
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0080.00022.05
8.2.110.0030.00622.28
8.2.100.0040.00817.78
8.2.90.0020.00519.08
8.2.80.0090.00017.97
8.2.70.0040.00717.38
8.2.60.0000.00717.93
8.2.50.0040.00418.07
8.2.40.0030.00619.95
8.2.30.0070.00018.11
8.2.20.0050.00217.55
8.2.10.0050.00318.02
8.2.00.0030.00617.51
8.1.270.0080.00023.80
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0000.00922.00
8.1.230.0040.00719.15
8.1.220.0050.00217.74
8.1.210.0050.00318.77
8.1.200.0000.00917.22
8.1.190.0030.00617.23
8.1.180.0040.00418.88
8.1.170.0040.00418.45
8.1.160.0040.00421.93
8.1.150.0040.00418.50
8.1.140.0040.00417.29
8.1.130.0030.00317.81
8.1.120.0070.00017.24
8.1.110.0000.00817.24
8.1.100.0000.00717.31
8.1.90.0070.00017.30
8.1.80.0040.00417.22
8.1.70.0050.00317.29
8.1.60.0060.00317.46
8.1.50.0000.00917.21
8.1.40.0050.00217.38
8.1.30.0000.00817.39
8.1.20.0040.00417.55
8.1.10.0040.00417.52
8.1.00.0040.00417.39
8.0.300.0040.00418.77
8.0.290.0050.00217.04
8.0.280.0000.00718.29
8.0.270.0000.00717.24
8.0.260.0000.00717.18
8.0.250.0070.00016.83
8.0.240.0060.00316.73
8.0.230.0000.00716.86
8.0.220.0050.00216.80
8.0.210.0040.00416.68
8.0.200.0000.00616.84
8.0.190.0030.00616.72
8.0.180.0000.00716.79
8.0.170.0040.00416.77
8.0.160.0070.00016.67
8.0.150.0080.00016.73
8.0.140.0000.00716.77
8.0.130.0000.00613.19
8.0.120.0040.00416.77
8.0.110.0030.00316.70
8.0.100.0000.00816.66
8.0.90.0040.00316.69
8.0.80.0060.00916.69
8.0.70.0050.00216.63
8.0.60.0070.00016.64
8.0.50.0050.00216.77
8.0.30.0120.00617.19
8.0.20.0140.00817.40
8.0.10.0000.00716.93
8.0.00.0070.01316.60
7.4.330.0000.00515.00
7.4.320.0000.00716.49
7.4.300.0040.00416.46
7.4.290.0030.00316.31
7.4.280.0040.00416.25
7.4.270.0070.00016.38
7.4.260.0000.00716.39
7.4.250.0030.00516.24
7.4.240.0000.00716.36
7.4.230.0040.00416.45
7.4.220.0060.01116.32
7.4.210.0070.01016.41
7.4.200.0040.00416.55
7.4.190.0000.00816.50
7.4.160.0130.00316.29
7.4.150.0120.00817.40
7.4.140.0100.00717.86
7.4.130.0080.00916.36
7.4.120.0080.00916.34
7.4.110.0090.00916.39
7.4.100.0040.01416.64
7.4.90.0060.01016.41
7.4.80.0060.01619.39
7.4.70.0030.01316.21
7.4.60.0090.00916.30
7.4.50.0030.00516.19
7.4.40.0090.00916.64
7.4.30.0100.00616.37
7.4.00.0090.00814.94
7.3.330.0050.00012.89
7.3.320.0000.00513.02
7.3.310.0030.00316.15
7.3.300.0000.00616.18
7.3.290.0110.00416.23
7.3.280.0080.00916.18
7.3.270.0030.01317.40
7.3.260.0080.01116.16
7.3.250.0040.01616.39
7.3.240.0030.01316.13
7.3.230.0110.01116.39
7.3.210.0100.00716.21
7.3.200.0070.01019.39
7.3.190.0110.01116.64
7.3.180.0030.01316.27
7.3.170.0120.00316.30
7.3.160.0060.00916.29
7.3.120.0050.01114.83
7.3.110.0120.00314.72
7.3.100.0090.00614.97
7.3.90.0050.00914.79
7.3.80.0090.00514.85
7.3.70.0050.01014.68
7.3.60.0080.00514.71
7.3.50.0050.00614.71
7.3.40.0050.01114.58
7.3.30.0070.01014.63
7.3.20.0110.00216.55
7.3.10.0080.00616.43
7.3.00.0050.01016.56
7.2.330.0070.01616.31
7.2.320.0070.01416.61
7.2.310.0090.00916.23
7.2.300.0110.01116.52
7.2.290.0100.00716.54
7.2.250.0080.00815.02
7.2.240.0100.00614.84
7.2.230.0030.01014.91
7.2.220.0070.00314.79
7.2.210.0070.00314.71
7.2.200.0030.01314.62
7.2.190.0030.01014.81
7.2.180.0070.00514.89
7.2.170.0070.01014.95
7.2.160.0060.00914.92
7.2.150.0110.00716.91
7.2.140.0060.00616.56
7.2.130.0070.01016.84
7.2.120.0030.01016.76
7.2.110.0070.00416.47
7.2.100.0030.01316.71
7.2.90.0040.01116.79
7.2.80.0030.01117.00
7.2.70.0030.01216.77
7.2.60.0020.01016.76
7.2.50.0070.01016.73
7.2.40.0030.01316.58
7.2.30.0070.01016.84
7.2.20.0070.01016.58
7.2.10.0070.01016.28
7.2.00.0060.01016.77
7.1.330.0050.01015.59
7.1.320.0030.01215.63
7.1.310.0050.00915.85
7.1.300.0060.00415.51
7.1.290.0030.00815.66
7.1.280.0060.00715.56
7.1.270.0070.00715.67
7.1.260.0030.01115.61
7.1.250.0080.00415.38
7.1.200.0060.00615.78
7.1.70.0030.00917.09
7.1.60.0090.01519.46
7.1.50.0180.01516.74
7.1.00.0030.07722.46
7.0.200.0370.00314.79
7.0.140.0000.07721.92
7.0.90.0700.08019.90
7.0.80.0470.06320.12
7.0.70.0470.07719.90
7.0.60.0670.06019.94
7.0.50.0630.08020.34
7.0.40.0170.07320.09
7.0.30.0070.05020.15
7.0.20.0130.07020.13
7.0.10.0030.08720.11
7.0.00.0170.07719.94
5.6.280.0000.07721.11
5.6.240.0130.07320.54
5.6.230.0000.04720.62
5.6.220.0070.08720.55
5.6.210.0170.06720.65
5.6.200.0170.06721.02
5.6.190.0100.08021.16
5.6.180.0070.07721.09
5.6.170.0100.07721.06
5.6.160.0070.05021.13
5.6.150.0070.04721.04
5.6.140.0100.04021.10
5.6.130.0100.08320.95
5.6.120.0000.07020.91
5.6.110.0030.08321.12
5.6.100.0130.07321.09
5.6.90.0070.04320.99
5.6.80.0130.07020.32
5.6.70.0030.08020.41
5.6.60.0230.06320.50
5.6.50.0070.07320.41
5.6.40.0000.07320.48
5.6.30.0070.07720.41
5.6.20.0070.04020.43
5.6.10.0100.08020.30
5.6.00.0100.06320.27
5.5.380.0000.05320.38
5.5.370.0000.05020.41
5.5.360.0130.07720.47
5.5.350.0030.07720.42
5.5.340.0270.07720.86
5.5.330.0100.06720.80
5.5.320.0100.04720.90
5.5.310.0070.09020.75
5.5.300.0030.04720.82
5.5.290.0100.07020.92
5.5.280.0130.07320.63
5.5.270.0070.07020.71
5.5.260.0070.05320.88
5.5.250.0070.06720.45
5.5.240.0100.07320.25
5.5.230.0070.08020.28
5.5.220.0100.07720.20
5.5.210.0100.05720.18
5.5.200.0030.07720.15
5.5.190.0100.08020.11
5.5.180.0130.07720.25
5.5.160.0030.06020.18
5.5.150.0070.08020.10
5.5.140.0070.08320.25
5.5.130.0070.06720.26
5.5.120.0070.08020.21
5.5.110.0070.08020.13
5.5.100.0100.07720.00
5.5.90.0000.06320.00
5.5.80.0030.08720.10
5.5.70.0170.07020.07
5.5.60.0130.07020.14
5.5.50.0000.08020.06
5.5.40.0100.07320.05
5.5.30.0070.07020.14
5.5.20.0070.07020.10
5.5.10.0130.07320.02
5.5.00.0070.08320.11
5.4.450.0200.03719.47
5.4.440.0130.05319.35
5.4.430.0000.04719.30
5.4.420.0100.07319.43
5.4.410.0030.05019.17
5.4.400.0070.08019.04
5.4.390.0070.07718.89
5.4.380.0130.05019.02
5.4.370.0070.08018.81
5.4.360.0100.08019.03
5.4.350.0170.07019.04
5.4.340.0000.07319.07
5.4.320.0130.07719.03
5.4.310.0130.07318.96
5.4.300.0100.06718.93
5.4.290.0030.05719.02
5.4.280.0000.05318.98
5.4.270.0100.04018.82
5.4.260.0100.04318.75
5.4.250.0100.07718.92
5.4.240.0100.07019.02
5.4.230.0070.07319.01
5.4.220.0030.07719.02
5.4.210.0030.05718.77
5.4.200.0130.06318.90
5.4.190.0030.08019.09
5.4.180.0000.07718.76
5.4.170.0070.06719.01
5.4.160.0170.06719.00
5.4.150.0170.06318.91
5.4.140.0000.06716.30
5.4.130.0100.03716.30
5.4.120.0030.04716.28
5.4.110.0000.08016.24
5.4.100.0030.07716.30
5.4.90.0030.07716.45
5.4.80.0030.07716.38
5.4.70.0170.05316.23
5.4.60.0000.07316.29
5.4.50.0130.06016.33
5.4.40.0130.05316.29
5.4.30.0070.06716.32
5.4.20.0070.07316.23
5.4.10.0070.07016.27
5.4.00.0000.04315.52
5.3.290.0030.07314.52
5.3.280.0100.07314.46
5.3.270.0130.07014.60
5.3.260.0200.06314.61
5.3.250.0100.07014.57
5.3.240.0170.07014.43
5.3.230.0030.07314.58
5.3.220.0070.07014.53
5.3.210.0070.05314.53
5.3.200.0100.07314.54
5.3.190.0100.05714.43
5.3.180.0130.06314.43
5.3.170.0130.06714.56
5.3.160.0030.05714.52
5.3.150.0070.04714.53
5.3.140.0000.08014.42
5.3.130.0030.08314.53
5.3.120.0100.07714.38
5.3.110.0100.06714.40
5.3.100.0030.07014.01
5.3.90.0070.03713.88
5.3.80.0100.06714.00
5.3.70.0070.03713.87
5.3.60.0100.06313.98
5.3.50.0030.05713.89
5.3.40.0070.04713.90
5.3.30.0000.05313.89
5.3.20.0100.06713.70
5.3.10.0170.04013.51
5.3.00.0100.07013.63
5.2.170.0000.06011.19
5.2.160.0070.05011.21
5.2.150.0070.05711.10
5.2.140.0030.06711.13
5.2.130.0070.05711.04
5.2.120.0000.06010.91
5.2.110.0100.02711.10
5.2.100.0070.03010.89
5.2.90.0030.06311.05
5.2.80.0030.05711.12
5.2.70.0000.03711.01
5.2.60.0070.06311.02
5.2.50.0070.04010.97
5.2.40.0100.05710.98
5.2.30.0070.04311.02
5.2.20.0000.04310.84
5.2.10.0030.04010.92
5.2.00.0100.05710.76
5.1.60.0000.06010.02
5.1.50.0070.0479.84
5.1.40.0000.0409.98
5.1.30.0030.05710.36
5.1.20.0070.05310.41
5.1.10.0030.05310.02
5.1.00.0070.05010.06
5.0.50.0030.0438.59
5.0.40.0070.0378.29
5.0.30.0070.0508.26
5.0.20.0000.0378.24
5.0.10.0100.0408.22
5.0.00.0070.0638.00
4.4.90.0070.0177.46
4.4.80.0000.0277.46
4.4.70.0000.0207.46
4.4.60.0030.0237.46
4.4.50.0030.0307.46
4.4.40.0000.0537.46
4.4.30.0030.0377.46
4.4.20.0000.0377.46
4.4.10.0030.0237.46
4.4.00.0000.0537.46
4.3.110.0070.0277.46
4.3.100.0070.0307.46
4.3.90.0030.0337.46
4.3.80.0030.0537.46
4.3.70.0070.0307.46
4.3.60.0030.0377.46
4.3.50.0000.0377.46
4.3.40.0070.0407.46
4.3.30.0030.0337.46
4.3.20.0030.0377.46
4.3.10.0000.0307.46
4.3.00.0030.0307.46

preferences:
42.4 ms | 400 KiB | 5 Q