3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(array('a"', array()));

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)
8.3.40.0040.01118.53
8.3.30.0090.00918.78
8.3.20.0040.00420.20
8.3.10.0040.00423.51
8.3.00.0030.00519.25
8.2.170.0140.00322.96
8.2.160.0120.00620.48
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0030.00722.25
8.2.110.0030.00622.13
8.2.100.0090.00317.63
8.2.90.0040.00419.09
8.2.80.0000.00917.97
8.2.70.0040.00417.50
8.2.60.0050.00317.93
8.2.50.0040.00418.07
8.2.40.0000.00819.88
8.2.30.0040.00417.94
8.2.20.0000.00717.48
8.2.10.0000.00717.80
8.2.00.0040.00417.43
8.1.270.0060.00923.88
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00324.00
8.1.230.0090.00319.13
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0040.00417.10
8.1.190.0030.00517.10
8.1.180.0000.00718.10
8.1.170.0000.00818.61
8.1.160.0030.00321.98
8.1.150.0000.00718.66
8.1.140.0070.00017.38
8.1.130.0030.00517.70
8.1.120.0000.00717.34
8.1.110.0000.00817.20
8.1.100.0020.00517.23
8.1.90.0000.00717.25
8.1.80.0050.00317.30
8.1.70.0000.00717.30
8.1.60.0030.00617.38
8.1.50.0040.00417.27
8.1.40.0000.01017.32
8.1.30.0040.00417.40
8.1.20.0030.00517.43
8.1.10.0000.00717.44
8.1.00.0050.00317.27
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.25
8.0.270.0000.00717.09
8.0.260.0060.00017.18
8.0.250.0070.00016.79
8.0.240.0000.00816.85
8.0.230.0000.00716.82
8.0.220.0000.00616.75
8.0.210.0000.00716.61
8.0.200.0030.00316.81
8.0.190.0000.00816.81
8.0.180.0050.00216.66
8.0.170.0000.00716.80
8.0.160.0040.00416.66
8.0.150.0040.00416.58
8.0.140.0000.00716.65
8.0.130.0050.00013.18
8.0.120.0050.00316.61
8.0.110.0040.00416.64
8.0.100.0030.00316.65
8.0.90.0000.00716.53
8.0.80.0160.00316.82
8.0.70.0000.00716.81
8.0.60.0040.00416.65
8.0.50.0040.00416.57
8.0.30.0120.00916.86
8.0.20.0110.00917.40
8.0.10.0070.00016.87
8.0.00.0060.01116.58
7.4.330.0030.00315.02
7.4.320.0060.00016.42
7.4.300.0000.00716.50
7.4.290.0000.00716.34
7.4.280.0080.00016.43
7.4.270.0040.00416.38
7.4.260.0030.00316.41
7.4.250.0020.00516.34
7.4.240.0050.00216.36
7.4.230.0070.00016.29
7.4.220.0120.00816.49
7.4.210.0080.00616.23
7.4.200.0030.00516.46
7.4.160.0060.01216.35
7.4.150.0040.01517.40
7.4.140.0150.00417.86
7.4.130.0100.01016.28
7.4.120.0110.00916.41
7.4.110.0110.00816.52
7.4.100.0140.00316.38
7.4.90.0040.01216.36
7.4.80.0140.00919.39
7.4.70.0090.01816.52
7.4.60.0030.01316.37
7.4.50.0000.00816.27
7.4.40.0060.01016.30
7.4.30.0060.00916.34
7.4.10.0060.00914.98
7.4.00.0080.00714.89
7.3.330.0050.00012.86
7.3.320.0020.00213.05
7.3.310.0040.00415.91
7.3.300.0060.00015.90
7.3.290.0010.01316.09
7.3.280.0070.00816.10
7.3.270.0090.00917.40
7.3.260.0120.00416.45
7.3.250.0050.01316.30
7.3.240.0050.01316.16
7.3.230.0150.00316.39
7.3.210.0030.01916.18
7.3.200.0090.01219.39
7.3.190.0070.01016.34
7.3.180.0060.00916.23
7.3.170.0090.00616.42
7.3.160.0090.00916.13
7.3.130.0070.01014.54
7.3.120.0040.01514.74
7.3.110.0160.00314.82
7.3.100.0040.01114.62
7.3.90.0090.00314.46
7.3.80.0030.00714.42
7.3.70.0030.01214.66
7.3.60.0100.00314.68
7.3.50.0090.00314.54
7.3.40.0030.01214.38
7.3.30.0040.01214.66
7.3.20.0040.01116.71
7.3.10.0030.00616.77
7.3.00.0040.01116.36
7.2.330.0100.00716.29
7.2.320.0080.01216.57
7.2.310.0030.01416.39
7.2.300.0030.01716.11
7.2.290.0070.01016.14
7.2.260.0160.00315.06
7.2.250.0090.00914.82
7.2.240.0060.00914.84
7.2.230.0030.01014.95
7.2.220.0080.00314.86
7.2.210.0070.00714.78
7.2.200.0000.01714.52
7.2.190.0060.00914.82
7.2.180.0000.01214.67
7.2.170.0080.00614.86
7.2.160.0030.01015.03
7.2.150.0000.01216.69
7.2.140.0060.01016.55
7.2.130.0070.00716.84
7.2.120.0080.00416.49
7.2.110.0030.00716.84
7.2.100.0040.00416.59
7.2.90.0070.00716.50
7.2.80.0100.00316.85
7.2.70.0030.01016.77
7.2.60.0050.00616.76
7.2.50.0080.00316.70
7.2.40.0040.01116.95
7.2.30.0090.00316.72
7.2.20.0040.01216.65
7.2.10.0060.00916.98
7.2.00.0050.00918.02
7.1.330.0120.00315.38
7.1.320.0030.01015.69
7.1.310.0070.00715.95
7.1.300.0090.00315.66
7.1.290.0060.00915.77
7.1.280.0080.00415.71
7.1.270.0060.00615.50
7.1.260.0060.01015.71
7.1.250.0080.00415.65
7.1.240.0110.00415.51
7.1.230.0000.01415.73
7.1.220.0000.01115.54
7.1.210.0070.00715.70
7.1.200.0050.00615.64
7.1.190.0060.00615.49
7.1.180.0000.01715.64
7.1.170.0040.00415.55
7.1.160.0090.00615.57
7.1.150.0030.00815.78
7.1.140.0040.00715.78
7.1.130.0030.00615.53
7.1.120.0030.01015.64
7.1.110.0030.01315.50
7.1.100.0060.00616.88
7.1.90.0030.01415.66
7.1.80.0000.01215.71
7.1.70.0040.00516.40
7.1.60.0020.01217.39
7.1.50.0150.00616.14
7.1.40.0060.00815.87
7.1.30.0000.01515.68
7.1.20.0110.00415.57
7.1.10.0040.00815.32
7.1.00.0050.04219.01
7.0.330.0070.00715.47
7.0.320.0040.00715.06
7.0.310.0040.00415.31
7.0.300.0030.00715.45
7.0.290.0090.00315.00
7.0.280.0040.01115.52
7.0.270.0030.00915.05
7.0.260.0060.01215.31
7.0.250.0040.01115.24
7.0.240.0060.00915.28
7.0.230.0050.00515.11
7.0.220.0050.00515.31
7.0.210.0090.00615.43
7.0.200.0040.00516.02
7.0.190.0090.00315.31
7.0.180.0050.00315.25
7.0.170.0040.00815.18
7.0.160.0060.00615.18
7.0.150.0000.01515.40
7.0.140.0030.04218.60
7.0.130.0040.00815.49
7.0.120.0040.00815.24
7.0.110.0040.01215.19
7.0.100.0100.00315.31
7.0.90.0230.04717.66
7.0.80.0190.03117.62
7.0.70.0300.01817.48
7.0.60.0220.02917.48
7.0.50.0300.04017.95
7.0.40.0050.04616.82
7.0.30.0100.03416.77
7.0.20.0090.03316.72
7.0.10.0110.04016.68
7.0.00.0120.03816.63
5.6.400.0000.01114.27
5.6.390.0040.00814.07
5.6.380.0050.00514.34
5.6.370.0030.00613.97
5.6.360.0070.00714.45
5.6.350.0060.00614.43
5.6.340.0030.01314.46
5.6.330.0060.00314.27
5.6.320.0070.01114.16
5.6.310.0060.01014.54
5.6.300.0040.00814.18
5.6.290.0030.01013.91
5.6.280.0070.04017.71
5.6.270.0040.00814.28
5.6.260.0060.01014.40
5.6.250.0040.01514.47
5.6.240.0110.03817.35
5.6.230.0050.02217.44
5.6.220.0040.02117.37
5.6.210.0090.03017.42
5.6.200.0080.04117.55
5.6.190.0110.04317.71
5.6.180.0030.04617.56
5.6.170.0080.03617.51
5.6.160.0090.03117.68
5.6.150.0050.03417.68
5.6.140.0030.02817.68
5.6.130.0050.04417.55
5.6.120.0030.03417.50
5.6.110.0030.04417.52
5.6.100.0020.05217.71
5.6.90.0150.03717.53
5.6.80.0100.03817.33
5.6.70.0050.04317.24
5.6.60.0050.04217.17
5.6.50.0050.02817.33
5.6.40.0030.04617.39
5.6.30.0090.03417.25
5.6.20.0030.03617.30
5.6.10.0050.04717.22
5.6.00.0120.03717.37
5.5.380.0030.02517.40
5.5.370.0080.01817.24
5.5.360.0060.02617.33
5.5.350.0070.02617.27
5.5.340.0080.04217.41
5.5.330.0020.03517.41
5.5.320.0100.04217.50
5.5.310.0090.04517.46
5.5.300.0070.04717.55
5.5.290.0050.04717.35
5.5.280.0100.02217.54
5.5.270.0120.03717.33
5.5.260.0080.02317.46
5.5.250.0090.04117.31
5.5.240.0070.02717.12
5.5.230.0150.03517.27
5.5.220.0110.03417.21
5.5.210.0130.03617.01
5.5.200.0110.04017.05
5.5.190.0100.04317.02
5.5.180.0050.04417.23
5.5.170.0000.01514.26
5.5.160.0070.04517.02
5.5.150.0140.03417.24
5.5.140.0080.02717.02
5.5.130.0110.03017.02
5.5.120.0050.03117.15
5.5.110.0110.03617.08
5.5.100.0090.04017.17
5.5.90.0100.03917.07
5.5.80.0080.03817.16
5.5.70.0050.02116.98
5.5.60.0050.04117.01
5.5.50.0060.03017.10
5.5.40.0090.03717.09
5.5.30.0140.03217.16
5.5.20.0080.04117.04
5.5.10.0030.04617.07
5.5.00.0080.04016.86
5.4.450.0110.03115.62
5.4.440.0070.03215.58
5.4.430.0050.03215.59
5.4.420.0030.04015.54
5.4.410.0050.03615.52
5.4.400.0070.02215.31
5.4.390.0030.02615.46
5.4.380.0100.03315.43
5.4.370.0030.04415.39
5.4.360.0100.03815.43
5.4.350.0070.02915.46
5.4.340.0020.04515.41
5.4.330.0040.00811.80
5.4.320.0030.04415.44
5.4.310.0100.03415.29
5.4.300.0070.03515.51
5.4.290.0070.03815.36
5.4.280.0110.03515.44
5.4.270.0030.04215.42
5.4.260.0110.03715.43
5.4.250.0070.02815.38
5.4.240.0070.03715.30
5.4.230.0050.03815.41
5.4.220.0100.01915.41
5.4.210.0010.02815.30
5.4.200.0050.04215.41
5.4.190.0050.03115.44
5.4.180.0100.03415.42
5.4.170.0040.02915.38
5.4.160.0100.03615.43
5.4.150.0050.02515.38
5.4.140.0070.03714.01
5.4.130.0050.03314.07
5.4.120.0020.04014.02
5.4.110.0050.02814.03
5.4.100.0070.03714.02
5.4.90.0050.03814.03
5.4.80.0060.03914.07
5.4.70.0090.02614.04
5.4.60.0030.04513.99
5.4.50.0050.03914.13
5.4.40.0070.03714.02
5.4.30.0070.03714.00
5.4.20.0020.03014.00
5.4.10.0070.02814.05
5.4.00.0040.02513.76
5.3.290.0170.07014.59
5.3.280.0000.06714.54
5.3.270.0100.06014.59
5.3.260.0070.07014.42
5.3.250.0070.07714.51
5.3.240.0030.07014.46
5.3.230.0030.08014.45
5.3.220.0030.07714.44
5.3.210.0170.06314.56
5.3.200.0100.04314.57
5.3.190.0070.07014.43
5.3.180.0070.04014.41
5.3.170.0130.06014.39
5.3.160.0100.06714.41
5.3.150.0000.08314.56
5.3.140.0030.07714.46
5.3.130.0100.06014.54
5.3.120.0070.08014.50
5.3.110.0030.07714.49
5.3.100.0130.06713.99
5.3.90.0070.04014.00
5.3.80.0130.06713.96
5.3.70.0000.07714.00
5.3.60.0030.06713.97
5.3.50.0030.07713.85
5.3.40.0070.07313.90
5.3.30.0030.04313.86
5.3.20.0070.04313.46
5.3.10.0000.04713.56
5.3.00.0030.06313.49
5.2.170.0000.05310.98
5.2.160.0070.06011.14
5.2.150.0030.06710.99
5.2.140.0030.06311.12
5.2.130.0000.07010.89
5.2.120.0030.03711.02
5.2.110.0070.06011.09
5.2.100.0100.06011.16
5.2.90.0100.05311.09
5.2.80.0000.04711.11
5.2.70.0030.06311.09
5.2.60.0100.05710.85
5.2.50.0030.06311.05
5.2.40.0070.05710.97
5.2.30.0070.05710.89
5.2.20.0070.05710.91
5.2.10.0070.05310.75
5.2.00.0030.04710.62
5.1.60.0070.0509.87
5.1.50.0170.04310.06
5.1.40.0030.0539.98
5.1.30.0070.05010.35
5.1.20.0030.04010.42
5.1.10.0100.04710.14
5.1.00.0070.03010.06
5.0.50.0030.0478.62
5.0.40.0030.0478.43
5.0.30.0030.0678.24
5.0.20.0070.0408.02
5.0.10.0030.0278.15
5.0.00.0030.0637.99
4.4.90.0070.0337.16
4.4.80.0000.0307.16
4.4.70.0100.0277.16
4.4.60.0030.0277.16
4.4.50.0030.0337.16
4.4.40.0000.0407.16
4.4.30.0070.0177.16
4.4.20.0000.0407.16
4.4.10.0030.0377.16
4.4.00.0030.0537.16
4.3.110.0100.0277.16
4.3.100.0030.0337.16
4.3.90.0070.0207.16
4.3.80.0000.0337.16
4.3.70.0030.0337.16
4.3.60.0100.0277.16
4.3.50.0000.0407.16
4.3.40.0070.0477.16
4.3.30.0000.0377.16
4.3.20.0030.0337.16
4.3.10.0070.0237.16
4.3.00.0000.0337.16

preferences:
40.98 ms | 400 KiB | 5 Q