3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(json_encode("this is a string"));

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)
8.3.40.0120.00618.59
8.3.30.0140.00018.86
8.3.20.0050.00320.27
8.3.10.0040.00423.61
8.3.00.0080.00019.07
8.2.170.0110.00322.96
8.2.160.0070.00720.57
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0070.00019.12
8.2.110.0030.00620.90
8.2.100.0120.00017.59
8.2.90.0000.00819.04
8.2.80.0060.00317.97
8.2.70.0060.00317.25
8.2.60.0040.00417.80
8.2.50.0070.00318.07
8.2.40.0040.00419.82
8.2.30.0080.00018.02
8.2.20.0020.00517.45
8.2.10.0080.00017.96
8.2.00.0050.00317.55
8.1.270.0080.00023.86
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00319.09
8.1.230.0110.00317.42
8.1.220.0000.00717.74
8.1.210.0080.00018.77
8.1.200.0000.00917.35
8.1.190.0040.00417.11
8.1.180.0030.00618.10
8.1.170.0050.00318.49
8.1.160.0040.00421.94
8.1.150.0000.00718.39
8.1.140.0000.00717.22
8.1.130.0000.00717.66
8.1.120.0000.00717.22
8.1.110.0050.00317.35
8.1.100.0000.00817.25
8.1.90.0030.00517.31
8.1.80.0000.00717.19
8.1.70.0000.00717.23
8.1.60.0020.00717.46
8.1.50.0000.00817.30
8.1.40.0030.00517.43
8.1.30.0040.00417.57
8.1.20.0040.00417.48
8.1.10.0040.00417.39
8.1.00.0040.00417.29
8.0.300.0050.00218.77
8.0.290.0090.00016.58
8.0.280.0000.00718.30
8.0.270.0030.00317.13
8.0.260.0030.00317.04
8.0.250.0030.00316.71
8.0.240.0000.00616.70
8.0.230.0050.00316.71
8.0.220.0030.00316.78
8.0.210.0040.00416.74
8.0.200.0030.00316.77
8.0.190.0040.00416.71
8.0.180.0000.00716.70
8.0.170.0090.00016.79
8.0.160.0000.00716.66
8.0.150.0000.00716.69
8.0.140.0030.00316.75
8.0.130.0080.00013.17
8.0.120.0070.00316.61
8.0.110.0030.00516.64
8.0.100.0050.00316.57
8.0.90.0070.00016.64
8.0.80.0070.01316.71
8.0.70.0070.00016.80
8.0.60.0040.00416.63
8.0.50.0000.00716.70
8.0.30.0130.00616.77
8.0.20.0130.00517.40
8.0.10.0040.00416.84
8.0.00.0100.01116.57
7.4.330.0050.00015.00
7.4.320.0030.00316.47
7.4.300.0000.00616.31
7.4.290.0000.00616.25
7.4.280.0030.00316.49
7.4.270.0000.00816.29
7.4.260.0000.00716.21
7.4.250.0030.00316.22
7.4.240.0020.00516.22
7.4.230.0030.00316.53
7.4.220.0190.00716.42
7.4.210.0100.00616.42
7.4.200.0040.00416.55
7.4.190.0000.00716.63
7.4.160.0090.00916.38
7.4.150.0070.01017.40
7.4.140.0120.00917.86
7.4.130.0090.00716.44
7.4.120.0060.01116.35
7.4.110.0000.01816.24
7.4.100.0070.01016.32
7.4.90.0090.00616.45
7.4.80.0110.00619.39
7.4.70.0030.01316.29
7.4.60.0110.01116.15
7.4.50.0000.00416.39
7.4.40.0060.01016.25
7.4.30.0160.00016.07
7.4.10.0130.00615.03
7.4.00.0100.00614.77
7.3.330.0030.00312.96
7.3.320.0020.00213.00
7.3.310.0000.00715.98
7.3.300.0030.00316.01
7.3.290.0160.00316.11
7.3.280.0090.01016.17
7.3.270.0070.01117.40
7.3.260.0080.00816.20
7.3.250.0100.00716.29
7.3.240.0130.00316.16
7.3.230.0080.00816.39
7.3.210.0140.00316.25
7.3.200.0030.01419.39
7.3.190.0160.00416.36
7.3.180.0080.00816.05
7.3.170.0120.00316.27
7.3.160.0060.00916.25
7.3.130.0060.01314.63
7.3.120.0050.01214.85
7.3.110.0130.00614.70
7.3.100.0100.00714.72
7.3.90.0060.00414.78
7.3.80.0030.01214.68
7.3.70.0040.00814.70
7.3.60.0030.00814.71
7.3.50.0070.00914.39
7.3.40.0040.00714.49
7.3.30.0010.01214.46
7.3.20.0080.00716.52
7.3.10.0050.00816.50
7.3.00.0050.00816.67
7.2.330.0110.00516.20
7.2.320.0070.01116.42
7.2.310.0130.00616.39
7.2.300.0150.00716.38
7.2.290.0100.01416.47
7.2.260.0030.01714.81
7.2.250.0040.00815.07
7.2.240.0030.01314.80
7.2.230.0060.00914.75
7.2.220.0090.00914.91
7.2.210.0020.01114.85
7.2.200.0040.00914.83
7.2.190.0050.00714.72
7.2.180.0060.00814.85
7.2.170.0040.00714.94
7.2.160.0050.00814.81
7.2.150.0070.00916.85
7.2.140.0100.00316.68
7.2.130.0080.00716.72
7.2.120.0060.00716.83
7.2.110.0070.00916.64
7.2.100.0080.00816.84
7.2.90.0110.00316.76
7.2.80.0080.00616.64
7.2.70.0040.01016.71
7.2.60.0030.01216.70
7.2.50.0070.00716.82
7.2.40.0110.00316.69
7.2.30.0060.00716.65
7.2.20.0050.00716.70
7.2.10.0050.01016.81
7.2.00.0040.01117.64
7.1.330.0080.00715.50
7.1.320.0050.01015.75
7.1.310.0050.00715.70
7.1.300.0080.00415.71
7.1.290.0020.01515.71
7.1.280.0040.00715.63
7.1.270.0030.01015.81
7.1.260.0020.01015.71
7.1.250.0070.00715.62
7.1.240.0070.00415.61
7.1.230.0000.01415.49
7.1.220.0040.01115.64
7.1.210.0100.00315.75
7.1.200.0060.00615.70
7.1.190.0070.00715.70
7.1.180.0040.01115.78
7.1.170.0050.00515.83
7.1.160.0040.00415.57
7.1.150.0060.00315.66
7.1.140.0040.00415.59
7.1.130.0060.00615.71
7.1.120.0090.00615.82
7.1.110.0070.00715.73
7.1.100.0060.00716.94
7.1.90.0100.00315.67
7.1.80.0030.00815.60
7.1.70.0070.00516.47
7.1.60.0070.01217.50
7.1.50.0110.01025.15
7.1.40.0060.00615.47
7.1.30.0140.00315.43
7.1.20.0060.00615.54
7.1.10.0120.00615.73
7.1.00.0020.04519.08
7.0.330.0000.01115.37
7.0.320.0040.01115.23
7.0.310.0040.00415.29
7.0.300.0040.00415.22
7.0.290.0060.00615.42
7.0.280.0080.00015.23
7.0.270.0030.00915.05
7.0.260.0000.00915.21
7.0.250.0070.01015.52
7.0.240.0030.01015.34
7.0.230.0090.00315.32
7.0.220.0090.00615.38
7.0.210.0000.00915.40
7.0.200.0070.00415.80
7.0.190.0090.00315.48
7.0.180.0070.00715.29
7.0.170.0100.00315.41
7.0.160.0140.00015.03
7.0.150.0150.00014.98
7.0.140.0060.03818.72
7.0.130.0070.01015.09
7.0.120.0020.03818.72
7.0.110.0050.03818.65
7.0.100.0100.03318.66
7.0.90.0070.03918.59
7.0.80.0050.04018.54
7.0.70.0050.03918.65
7.0.60.0040.03218.51
7.0.50.0060.03818.66
7.0.40.0060.03617.71
7.0.30.0030.04017.67
7.0.20.0060.03617.79
7.0.10.0060.03717.58
7.0.00.0080.03517.73
5.6.400.0090.00314.20
5.6.390.0030.00714.15
5.6.380.0090.00614.46
5.6.370.0030.00614.33
5.6.360.0000.01014.14
5.6.350.0090.00314.09
5.6.340.0070.00414.13
5.6.330.0110.00314.36
5.6.320.0100.00313.95
5.6.310.0030.01014.19
5.6.300.0100.00014.16
5.6.290.0090.00314.29
5.6.280.0040.04217.72
5.6.270.0030.01414.05
5.6.260.0050.04217.52
5.6.250.0030.04117.52
5.6.240.0000.04717.61
5.6.230.0020.04717.50
5.6.220.0080.03717.46
5.6.210.0000.04317.46
5.6.200.0020.04517.48
5.6.190.0030.04217.48
5.6.180.0060.03817.45
5.6.170.0050.03817.61
5.6.160.0050.03817.29
5.6.150.0050.04017.44
5.6.140.0050.04217.45
5.6.130.0030.04017.64
5.6.120.0080.03217.47
5.6.110.0070.03917.47
5.6.100.0060.03417.58
5.6.90.0060.03917.44
5.6.80.0050.03817.04
5.6.70.0020.03516.96
5.6.60.0100.03517.02
5.6.50.0020.04117.15
5.6.40.0040.03917.17
5.6.30.0050.03817.11
5.6.20.0050.04017.17
5.6.10.0020.04017.16
5.6.00.0030.04017.09
5.5.380.0020.04215.79
5.5.370.0030.04215.90
5.5.360.0050.03915.75
5.5.350.0020.04215.76
5.5.340.0060.03816.09
5.5.330.0030.03716.20
5.5.320.0090.03516.10
5.5.310.0030.03516.03
5.5.300.0050.04116.22
5.5.290.0020.04115.95
5.5.280.0020.04016.17
5.5.270.0020.03616.02
5.5.260.0060.03516.04
5.5.250.0050.03415.99
5.5.240.0030.03815.56
5.5.230.0030.04315.66
5.5.220.0070.03515.75
5.5.210.0050.03515.79
5.5.200.0080.03515.81
5.5.190.0050.03815.79
5.5.180.0000.04115.63
5.5.170.0090.00313.77
5.5.160.0020.03715.54
5.5.150.0000.04315.55
5.5.140.0050.03515.65
5.5.130.0020.03815.73
5.5.120.0020.04115.89
5.5.110.0080.03215.71
5.5.100.0050.03615.56
5.5.90.0080.03115.44
5.5.80.0060.03015.44
5.5.70.0070.03215.41
5.5.60.0020.03915.54
5.5.50.0050.03315.48
5.5.40.0060.03315.45
5.5.30.0070.03515.54
5.5.20.0050.03715.60
5.5.10.0020.03915.32
5.5.00.0050.03815.56
5.4.450.0050.03715.04
5.4.440.0020.04015.00
5.4.430.0080.03315.11
5.4.420.0070.02715.12
5.4.410.0030.03715.06
5.4.400.0060.03314.93
5.4.390.0000.04114.96
5.4.380.0020.03414.87
5.4.370.0020.03714.95
5.4.360.0050.03714.75
5.4.350.0050.03515.03
5.4.340.0040.03914.81
5.4.330.0030.00610.93
5.4.320.0060.03814.85
5.4.310.0030.03814.94
5.4.300.0070.03514.91
5.4.290.0020.03815.05
5.4.280.0030.03615.01
5.4.270.0050.03514.92
5.4.260.0020.03714.84
5.4.250.0050.03314.71
5.4.240.0020.03914.77
5.4.230.0050.03514.94
5.4.220.0030.03915.05
5.4.210.0020.03714.98
5.4.200.0020.03814.82
5.4.190.0030.03814.90
5.4.180.0050.03314.78
5.4.170.0070.03314.96
5.4.160.0020.03214.71
5.4.150.0060.02914.94
5.4.140.0070.03313.58
5.4.130.0050.03313.40
5.4.120.0030.03213.49
5.4.110.0030.03213.65
5.4.100.0030.03513.56
5.4.90.0060.03013.62
5.4.80.0100.02513.59
5.4.70.0060.03213.54
5.4.60.0070.03313.59
5.4.50.0070.03213.52
5.4.40.0070.03213.64
5.4.30.0050.03513.68
5.4.20.0040.03613.46
5.4.10.0030.03713.67
5.4.00.0030.03513.22
5.3.290.0030.03712.52
5.3.280.0020.03012.35
5.3.270.0070.03512.44
5.3.260.0030.03612.32
5.3.250.0030.03712.42
5.3.240.0080.03212.35
5.3.230.0010.03912.34
5.3.220.0020.03012.45
5.3.210.0080.03312.43
5.3.200.0030.03612.26
5.3.190.0020.03812.24
5.3.180.0060.03312.44
5.3.170.0050.03412.38
5.3.160.0070.03212.44
5.3.150.0000.04012.44
5.3.140.0030.03712.42
5.3.130.0030.03812.36
5.3.120.0000.04012.39
5.3.110.0030.03812.51
5.3.100.0050.03012.20
5.3.90.0030.03611.98
5.3.80.0050.03511.99
5.3.70.0000.03312.00
5.3.60.0030.03612.17
5.3.50.0020.03511.98
5.3.40.0050.03212.02
5.3.30.0020.03712.07
5.3.20.0040.03411.85
5.3.10.0020.03511.80
5.3.00.0040.03011.73
5.2.170.0000.06011.15
5.2.160.0030.05011.08
5.2.150.0030.05011.15
5.2.140.0030.05310.94
5.2.130.0000.05311.15
5.2.120.0030.05011.02
5.2.110.0000.05710.88
5.2.100.0000.05010.88
5.2.90.0070.05011.01
5.2.80.0030.05311.03
5.2.70.0000.05711.03
5.2.60.0000.05710.95
5.2.50.0000.05710.97
5.2.40.0000.05710.98
5.2.30.0030.05311.13
5.2.20.0100.04711.01
5.2.10.0030.05310.84
5.2.00.0000.05710.65
5.1.60.0000.0479.81
5.1.50.0030.04710.00
5.1.40.0030.0479.88
5.1.30.0000.05010.26
5.1.20.0000.05010.57
5.1.10.0000.05010.15
5.1.00.0030.0479.99
5.0.50.0000.0409.72
5.0.40.0030.0379.72
5.0.30.0030.0579.72
5.0.20.0000.0409.72
5.0.10.0000.0409.72
5.0.00.0030.0479.72
4.4.90.0000.0309.72
4.4.80.0030.0279.72
4.4.70.0030.0239.72
4.4.60.0030.0279.72
4.4.50.0000.0309.72
4.4.40.0000.0379.72
4.4.30.0000.0309.72
4.4.20.0000.0309.72
4.4.10.0000.0309.72
4.4.00.0000.0479.72
4.3.110.0000.0309.72
4.3.100.0030.0279.72
4.3.90.0030.0279.72
4.3.80.0000.0479.72
4.3.70.0000.0309.72
4.3.60.0000.0309.72
4.3.50.0000.0309.72
4.3.40.0000.0439.72
4.3.30.0030.0309.72
4.3.20.0000.0309.72
4.3.10.0070.0279.72
4.3.00.0000.0339.72

preferences:
53.69 ms | 400 KiB | 5 Q