3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array("name" => "joe", 'age' => "'"); echo json_encode($a);

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)
8.3.60.0070.00716.50
8.3.50.0120.00721.89
8.3.40.0150.00318.70
8.3.30.0040.01119.00
8.3.20.0040.00420.13
8.3.10.0040.00421.91
8.3.00.0090.00019.24
8.2.180.0140.00718.41
8.2.170.0130.00722.96
8.2.160.0090.00420.53
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.01026.16
8.2.120.0090.00019.11
8.2.110.0030.00719.38
8.2.100.0090.00317.50
8.2.90.0030.00519.18
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0070.00018.16
8.2.50.0070.00318.07
8.2.40.0040.00419.71
8.2.30.0030.00617.97
8.2.20.0040.00417.67
8.2.10.0070.00018.03
8.2.00.0000.00717.60
8.1.280.0150.00625.92
8.1.270.0160.00320.71
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0130.00323.86
8.1.230.0040.00719.14
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0080.00017.00
8.1.180.0000.00718.10
8.1.170.0000.00818.56
8.1.160.0050.00221.95
8.1.150.0000.00718.73
8.1.140.0050.00217.38
8.1.130.0030.00317.83
8.1.120.0040.00417.38
8.1.110.0030.00517.41
8.1.100.0070.00017.44
8.1.90.0070.00017.28
8.1.80.0000.00717.33
8.1.70.0030.00317.39
8.1.60.0060.00317.49
8.1.50.0040.00417.39
8.1.40.0070.00017.31
8.1.30.0050.00317.55
8.1.20.0000.00817.52
8.1.10.0000.00717.39
8.1.00.0000.00717.45
8.0.300.0000.00818.77
8.0.290.0000.00816.75
8.0.280.0000.00718.48
8.0.270.0030.00317.30
8.0.260.0030.00317.25
8.0.250.0000.00716.85
8.0.240.0030.00316.98
8.0.230.0000.00716.73
8.0.220.0020.00516.66
8.0.210.0080.00016.86
8.0.200.0000.00616.91
8.0.190.0030.00616.97
8.0.180.0070.00016.86
8.0.170.0050.00216.76
8.0.160.0080.00016.81
8.0.150.0030.00316.61
8.0.140.0000.00716.65
8.0.130.0000.00513.29
8.0.120.0070.00016.81
8.0.110.0030.00516.71
8.0.100.0040.00416.80
8.0.90.0080.00016.88
8.0.80.0160.00416.80
8.0.70.0070.00016.89
8.0.60.0000.00716.72
8.0.50.0070.00016.65
8.0.30.0140.01217.14
8.0.20.0170.00717.40
8.0.10.0000.00716.87
8.0.00.0120.00716.79
7.4.330.0050.00015.03
7.4.320.0030.00316.57
7.4.300.0030.00316.52
7.4.290.0040.00416.41
7.4.280.0080.00016.51
7.4.270.0000.00716.53
7.4.260.0000.00716.46
7.4.250.0070.00016.38
7.4.240.0030.00416.48
7.4.230.0070.00016.32
7.4.220.0030.02316.52
7.4.210.0150.00016.45
7.4.200.0000.00716.60
7.4.160.0100.00516.36
7.4.150.0110.00717.40
7.4.140.0070.01117.86
7.4.130.0120.00716.53
7.4.120.0050.01216.40
7.4.110.0100.00716.29
7.4.100.0030.01316.49
7.4.90.0150.00416.46
7.4.80.0110.00919.39
7.4.70.0120.00916.40
7.4.60.0090.00916.45
7.4.50.0040.00416.38
7.4.40.0030.01516.54
7.4.30.0110.00516.21
7.4.00.0070.00714.88
7.3.330.0000.00512.97
7.3.320.0050.00912.97
7.3.310.0030.00316.06
7.3.300.0000.00716.08
7.3.290.0090.00516.14
7.3.280.0090.00816.12
7.3.270.0190.00317.40
7.3.260.0040.01416.14
7.3.250.0110.01116.21
7.3.240.0100.01016.33
7.3.230.0030.01916.40
7.3.210.0060.00916.41
7.3.200.0070.01019.39
7.3.190.0140.00716.36
7.3.180.0120.00316.44
7.3.170.0130.00316.29
7.3.160.0130.00316.35
7.3.10.0060.00316.38
7.3.00.0030.01016.23
7.2.330.0120.00616.57
7.2.320.0090.00616.54
7.2.310.0090.00916.41
7.2.300.0000.01616.64
7.2.290.0130.00416.67
7.2.130.0060.00616.74
7.2.120.0240.00616.58
7.2.110.0140.00616.42
7.2.100.0150.00716.42
7.2.90.0140.00516.60
7.2.80.0140.00516.63
7.2.70.0140.00916.54
7.2.60.0080.00516.72
7.2.50.0250.00216.59
7.2.40.0160.00716.81
7.2.30.0110.00716.51
7.2.20.0180.00616.86
7.2.10.0140.00616.59
7.2.00.0170.00616.77
7.1.250.0070.00315.46
7.1.240.0180.00715.92
7.1.230.0210.00615.75
7.1.220.0220.00815.73
7.1.210.0350.00015.71
7.1.200.0230.00615.56
7.1.190.0210.00315.80
7.1.180.0200.00615.62
7.1.170.0190.00415.54
7.1.160.0220.00815.82
7.1.150.0230.00715.59
7.1.140.0160.00415.74
7.1.130.0250.00415.49
7.1.120.0290.00615.71
7.1.110.0270.00815.83
7.1.100.0150.00217.05
7.1.90.0290.00015.93
7.1.80.0270.00215.64
7.1.70.0140.01216.38
7.1.60.0230.00717.52
7.1.50.0260.00916.11
7.1.40.0270.00415.71
7.1.30.0440.00315.63
7.1.20.0430.00015.87
7.1.10.0150.01215.64
7.1.00.0260.03819.01
7.0.320.0110.00715.51
7.0.310.0270.00015.41
7.0.300.0240.00315.48
7.0.290.0210.01115.44
7.0.280.0300.00715.38
7.0.270.0250.00415.07
7.0.260.0210.00715.38
7.0.250.0190.00715.24
7.0.240.0270.00315.27
7.0.230.0570.00915.28
7.0.220.0350.00015.48
7.0.210.0280.00015.36
7.0.200.0520.01015.01
7.0.190.0240.01015.24
7.0.180.0240.00915.14
7.0.170.0260.00415.20
7.0.160.0210.00715.16
7.0.150.0230.00315.47
7.0.140.0120.03718.69
7.0.130.0220.00715.52
7.0.120.0360.01014.92
7.0.110.0170.00815.40
7.0.100.0240.00715.23
7.0.90.0190.02517.69
7.0.80.0140.02317.57
7.0.70.0200.02617.58
7.0.60.0150.02617.48
7.0.50.0180.03517.89
7.0.40.0090.04216.55
7.0.30.0150.04216.72
7.0.20.0140.02316.87
7.0.10.0070.03216.77
7.0.00.0080.03116.80
5.6.380.0090.00914.23
5.6.370.0140.00613.86
5.6.360.0130.00514.60
5.6.350.0120.00214.25
5.6.340.0140.00614.41
5.6.330.0120.00414.02
5.6.320.0120.00214.35
5.6.310.0050.00914.38
5.6.300.0140.00014.32
5.6.290.0070.01014.04
5.6.280.0100.03517.57
5.6.270.0110.00314.49
5.6.260.0070.00814.29
5.6.250.0110.00614.12
5.6.240.0090.02317.40
5.6.230.0140.03817.35
5.6.220.0100.04217.33
5.6.210.0130.03217.45
5.6.200.0110.02517.61
5.6.190.0120.02017.67
5.6.180.0090.03017.48
5.6.170.0100.03817.74
5.6.160.0040.03117.65
5.6.150.0080.03017.70
5.6.140.0110.02717.61
5.6.130.0060.04817.67
5.6.120.0050.03017.60
5.6.110.0090.04517.72
5.6.100.0070.04417.64
5.6.90.0080.03217.67
5.6.80.0070.04317.24
5.6.70.0120.04217.27
5.6.60.0090.03517.33
5.6.50.0090.03317.34
5.6.40.0070.03717.14
5.6.30.0090.04217.41
5.6.20.0080.02317.29
5.6.10.0110.02017.25
5.6.00.0130.03717.40
5.5.380.0090.02815.70
5.5.370.0020.02915.72
5.5.360.0090.03315.84
5.5.350.0080.02515.78
5.5.340.0040.02815.92
5.5.330.0080.03015.84
5.5.320.0090.02816.07
5.5.310.0100.02815.97
5.5.300.0080.04516.04
5.5.290.0100.04015.97
5.5.280.0090.03915.99
5.5.270.0060.04215.79
5.5.260.0170.03315.91
5.5.250.0040.03615.83
5.5.240.0110.03015.58
5.5.230.0080.02915.59
5.5.220.0080.03315.57
5.5.210.0110.03815.69
5.5.200.0080.02115.66
5.5.190.0050.04315.59
5.5.180.0070.04615.55
5.5.170.0100.00514.30
5.5.160.0070.02315.66
5.5.150.0140.03615.58
5.5.140.0100.03915.60
5.5.130.0060.03615.55
5.5.120.0070.02415.57
5.5.110.0020.02515.61
5.5.100.0090.02215.64
5.5.90.0080.02315.47
5.5.80.0080.03515.56
5.5.70.0030.02315.45
5.5.60.0070.01915.60
5.5.50.0080.01915.51
5.5.40.0040.02415.45
5.5.30.0080.01815.50
5.5.20.0070.02015.48
5.5.10.0050.02515.49
5.5.00.0070.02015.47
5.4.450.0070.03415.14
5.4.440.0120.03715.15
5.4.430.0100.03515.25
5.4.420.0100.03015.20
5.4.410.0100.03815.20
5.4.400.0040.04215.02
5.4.390.0050.03814.99
5.4.380.0100.03214.93
5.4.370.0090.04115.01
5.4.360.0100.03714.99
5.4.350.0130.02314.99
5.4.340.0100.03014.94
5.4.330.0040.00810.97
5.4.320.0060.03814.97
5.4.310.0070.03314.95
5.4.300.0090.03814.98
5.4.290.0110.02315.03
5.4.280.0090.02714.98
5.4.270.0020.02415.07
5.4.260.0060.02514.98
5.4.250.0050.02215.02
5.4.240.0110.03414.97
5.4.230.0060.02414.98
5.4.220.0040.02014.87
5.4.210.0020.02214.99
5.4.200.0100.01915.02
5.4.190.0070.02014.86
5.4.180.0050.02714.96
5.4.170.0060.02114.92
5.4.160.0050.02314.98
5.4.150.0050.02215.03
5.4.140.0080.01813.60
5.4.130.0030.03313.57
5.4.120.0070.01713.59
5.4.110.0050.02113.61
5.4.100.0070.01813.66
5.4.90.0050.01913.70
5.4.80.0070.01613.64
5.4.70.0080.01713.78
5.4.60.0060.01813.67
5.4.50.0030.02013.62
5.4.40.0110.02913.75
5.4.30.0060.01813.59
5.4.20.0020.02813.63
5.4.10.0050.03013.55
5.4.00.0050.01913.29
5.3.290.0070.02512.71
5.3.280.0050.02212.72
5.3.270.0060.01712.74
5.3.260.0040.02712.67
5.3.250.0050.02112.68
5.3.240.0070.02012.69
5.3.230.0040.02112.75
5.3.220.0070.02012.67
5.3.210.0060.02512.67
5.3.200.0080.01812.74
5.3.190.0030.02212.73
5.3.180.0040.02212.65
5.3.170.0060.02012.71
5.3.160.0070.02012.73
5.3.150.0090.01712.66
5.3.140.0030.02512.69
5.3.130.0070.02012.73
5.3.120.0110.03812.72
5.3.110.0020.03112.66
5.3.100.0010.02812.38
5.3.90.0080.02012.45
5.3.80.0020.02212.39
5.3.70.0050.01912.43
5.3.60.0070.01812.45
5.3.50.0040.02612.42
5.3.40.0050.02112.31
5.3.30.0090.02612.40
5.3.20.0080.02512.29
5.3.10.0080.02012.22
5.3.00.0070.02712.27
5.2.170.0000.01910.92
5.2.160.0040.01511.00
5.2.150.0080.03010.99
5.2.140.0070.01411.03
5.2.130.0030.01710.90
5.2.120.0020.01711.03
5.2.110.0050.01710.99
5.2.100.0040.01611.00
5.2.90.0020.01911.00
5.2.80.0040.01811.00
5.2.70.0060.02710.92
5.2.60.0040.01711.00
5.2.50.0030.01910.96
5.2.40.0080.01210.91
5.2.30.0030.01510.94
5.2.20.0060.01210.96
5.2.10.0070.03410.92
5.2.00.0080.02310.85
5.1.60.0020.02610.45
5.1.50.0070.01810.45
5.1.40.0050.02810.43
5.1.30.0070.02310.60
5.1.20.0080.02910.66
5.1.10.0050.02310.50
5.1.00.0040.02310.51
5.0.50.0040.0189.73
5.0.40.0000.0209.68
5.0.30.0060.0179.58
5.0.20.0030.0259.56
5.0.10.0010.0209.46
5.0.00.0000.0349.45
4.4.90.0040.0089.14
4.4.80.0030.0169.14
4.4.70.0030.0139.14
4.4.60.0000.0229.14
4.4.50.0040.0179.14
4.4.40.0000.0239.14
4.4.30.0020.0209.14
4.4.20.0050.0159.14
4.4.10.0070.0149.14
4.4.00.0030.0269.14
4.3.110.0000.0219.14
4.3.100.0000.0219.14
4.3.90.0020.0199.14
4.3.80.0030.0279.14
4.3.70.0020.0159.14
4.3.60.0020.0139.14
4.3.50.0020.0109.14
4.3.40.0020.0219.14
4.3.30.0030.0199.14
4.3.20.0030.0149.14
4.3.10.0000.0229.14
4.3.00.0030.0199.14

preferences:
44.21 ms | 401 KiB | 5 Q