3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ 'name' => 'bear', 'age' => 23 ]; $b = []; $c = new stdClass; var_dump(json_encode($a)); var_dump(json_encode($b)); var_dump(json_encode($c));

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)
8.3.70.0110.00716.50
8.3.60.0090.00618.38
8.3.50.0090.00818.10
8.3.40.0150.00318.34
8.3.30.0100.00718.46
8.3.20.0050.00320.73
8.3.10.0080.00021.57
8.3.00.0080.00022.34
8.2.190.0070.00716.58
8.2.180.0110.00716.50
8.2.170.0110.01122.96
8.2.160.0130.00720.11
8.2.150.0000.00824.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0070.00020.74
8.2.110.0030.00720.98
8.2.100.0090.00317.91
8.2.90.0030.00517.72
8.2.80.0060.00317.97
8.2.70.0050.00317.91
8.2.60.0060.00318.09
8.2.50.0000.00918.10
8.2.40.0000.00719.30
8.2.30.0070.00020.61
8.2.20.0050.00217.91
8.2.10.0040.00719.26
8.2.00.0040.00418.11
8.1.280.0090.00625.92
8.1.270.0000.00822.22
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0030.00622.52
8.1.230.0080.00420.95
8.1.220.0060.00317.74
8.1.210.0050.00518.77
8.1.200.0090.00017.22
8.1.190.0040.00717.23
8.1.180.0000.00718.10
8.1.170.0000.00818.46
8.1.160.0070.00018.72
8.1.150.0000.00718.81
8.1.140.0040.00418.88
8.1.130.0040.00420.23
8.1.120.0050.00217.39
8.1.110.0030.00317.38
8.1.100.0040.00417.27
8.1.90.0040.00417.32
8.1.80.0040.00417.41
8.1.70.0030.00317.43
8.1.60.0030.00517.50
8.1.50.0030.00617.39
8.1.40.0050.00317.34
8.1.30.0070.00417.52
8.1.20.0000.00817.41
8.1.10.0050.00317.41
8.1.00.0040.00417.36
8.0.300.0080.00021.50
8.0.290.0040.00416.63
8.0.280.0030.00318.38
8.0.270.0070.00017.20
8.0.260.0000.00918.29
8.0.250.0000.00716.81
8.0.240.0000.00716.89
8.0.230.0000.00716.79
8.0.220.0000.00716.84
8.0.210.0000.00616.83
8.0.200.0070.00016.77
8.0.190.0060.00316.90
8.0.180.0040.00416.77
8.0.170.0000.00916.80
8.0.160.0070.00016.80
8.0.150.0040.00416.83
8.0.140.0040.00416.67
8.0.130.0030.00313.27
8.0.120.0000.00716.78
8.0.110.0000.00716.64
8.0.100.0050.00316.67
8.0.90.0000.00716.70
8.0.80.0070.00716.80
8.0.70.0000.00816.85
8.0.60.0030.00516.79
8.0.50.0000.00816.84
8.0.30.0080.00816.98
8.0.20.0110.01116.82
8.0.10.0040.00416.89
8.0.00.0120.00816.67
7.4.330.0060.00016.84
7.4.320.0070.00016.41
7.4.300.0030.00316.50
7.4.290.0030.00316.44
7.4.280.0100.00016.37
7.4.270.0070.00316.44
7.4.260.0070.00016.56
7.4.250.0000.00716.40
7.4.240.0020.00516.54
7.4.230.0030.00316.61
7.4.220.0040.00416.27
7.4.210.0080.00816.43
7.4.200.0000.00716.51
7.4.160.0090.00716.38
7.4.140.0000.01717.86
7.4.130.0090.01016.34
7.4.120.0160.00616.36
7.4.110.0090.00916.31
7.4.100.0090.00916.49
7.4.90.0080.01216.28
7.4.80.0060.01219.39
7.4.70.0120.00616.52
7.4.60.0120.00316.25
7.4.50.0000.01516.27
7.4.40.0120.00616.61
7.4.10.0040.01215.09
7.4.00.0080.00814.90
7.3.330.0000.00513.04
7.3.320.0060.00012.88
7.3.310.0030.00316.10
7.3.300.0020.00516.14
7.3.290.0050.00316.09
7.3.280.0150.01016.13
7.3.260.0110.00716.30
7.3.240.0060.01116.26
7.3.230.0060.01616.20
7.3.210.0040.01916.13
7.3.200.0090.00816.24
7.3.190.0090.00916.48
7.3.180.0060.01216.21
7.3.170.0100.00716.20
7.3.160.0080.00816.14
7.3.130.0100.00714.75
7.3.120.0060.01214.67
7.3.110.0030.01014.84
7.3.100.0080.00814.55
7.3.90.0100.00314.84
7.3.80.0040.01114.53
7.3.70.0030.00514.46
7.3.60.0030.01214.71
7.3.50.0060.00914.59
7.3.40.0060.00914.67
7.3.30.0050.00914.47
7.3.20.0060.00716.45
7.3.10.0050.01016.45
7.3.00.0100.00716.28
7.2.330.0120.00816.62
7.2.320.0160.00616.59
7.2.310.0060.00916.34
7.2.300.0090.00916.31
7.2.290.0100.01016.34
7.2.260.0090.00614.82
7.2.250.0030.01015.08
7.2.240.0060.00914.98
7.2.230.0060.00914.86
7.2.220.0070.01014.78
7.2.210.0040.00414.83
7.2.200.0100.00614.82
7.2.190.0040.01114.91
7.2.180.0030.00914.89
7.2.170.0050.00814.80
7.2.160.0060.01014.88
7.2.150.0100.00416.71
7.2.140.0080.00416.78
7.2.130.0160.00916.68
7.2.120.0080.00716.71
7.2.110.0070.01116.73
7.2.100.0100.00616.69
7.2.90.0060.01016.79
7.2.80.0080.00816.79
7.2.70.0110.00416.74
7.2.60.0080.00916.87
7.2.50.0050.00816.82
7.2.40.0040.01016.69
7.2.30.0090.00916.22
7.2.20.0080.01116.21
7.2.10.0080.00516.15
7.2.00.0150.00816.27
7.1.330.0030.01315.32
7.1.320.0070.00715.50
7.1.310.0090.00615.79
7.1.300.0080.00615.38
7.1.290.0060.00915.79
7.1.280.0060.00615.54
7.1.270.0060.00815.52
7.1.260.0040.00715.73
7.1.250.0060.00815.14
7.1.240.0030.01314.69
7.1.230.0060.01015.44
7.1.220.0060.00615.61
7.1.210.0040.00915.58
7.1.200.0070.00615.54
7.1.190.0040.00515.61
7.1.180.0040.00815.73
7.1.170.0080.00615.67
7.1.160.0080.00515.74
7.1.150.0090.00414.55
7.1.140.0110.00414.37
7.1.130.0090.00614.63
7.1.120.0100.00814.80
7.1.110.0090.00514.85
7.1.100.0060.00814.65
7.1.90.0070.00614.76
7.1.80.0310.00314.79
7.1.70.0070.00414.93
7.1.60.0080.00814.62
7.1.50.0100.00314.70
7.1.40.0030.00914.69
7.1.30.0300.00914.83
7.1.20.0130.00714.55
7.1.10.0070.00514.62
7.1.00.0130.00614.64
7.0.330.0050.00515.30
7.0.320.0030.01715.35
7.0.310.0040.00815.25
7.0.300.0070.01115.33
7.0.290.0140.00615.08
7.0.280.0120.00313.39
7.0.270.0060.00813.52
7.0.260.0210.00013.42
7.0.250.0140.00813.60
7.0.240.0100.00313.45
7.0.230.0110.00413.60
7.0.220.0060.00613.55
7.0.210.0060.00913.45
7.0.200.0090.00313.68
7.0.190.0080.00813.49
7.0.180.0080.01513.48
7.0.170.0110.00713.29
7.0.160.0140.00813.36
7.0.150.0120.01213.38
7.0.140.0190.00313.50
7.0.130.0090.00613.58
7.0.120.0120.00313.26
7.0.110.0070.01013.57
7.0.100.0110.00513.53
7.0.90.0030.01313.58
7.0.80.0900.01015.13
7.0.70.0080.00415.29
7.0.60.0090.00615.40
7.0.50.0060.01315.21
7.0.40.0180.00315.23
7.0.30.0070.00715.00
7.0.20.0060.00315.27
7.0.10.0120.00915.36
7.0.00.0150.00015.31
5.6.400.0130.00313.80
5.6.390.0030.00914.55
5.6.380.0090.00614.13
5.6.370.0150.00814.28
5.6.360.0190.00314.22
5.6.350.0120.01514.46
5.6.340.0110.01113.95
5.6.330.0150.00314.36
5.6.320.0100.01514.50
5.6.310.0040.01814.38
5.6.300.0040.02914.11
5.6.290.0170.00514.45
5.6.280.0150.00414.21
5.6.270.0140.00714.53
5.6.260.0090.00914.31
5.6.250.0140.00714.18
5.6.240.0150.00914.19
5.6.230.0170.01114.36
5.6.220.0090.01213.95
5.6.210.0110.00914.20
5.6.200.0140.01214.38
5.6.190.0120.00614.11
5.6.180.0150.00614.06
5.6.170.0120.00413.94
5.6.160.0140.00314.27
5.6.150.0080.01314.00
5.6.140.0140.01113.88
5.6.130.0100.01214.33
5.6.120.0160.00514.14
5.6.110.0090.01214.13
5.6.100.0130.01014.36
5.6.90.0150.00614.22
5.6.80.0190.00314.04
5.6.70.0200.00814.01
5.6.60.0190.00914.34
5.6.50.0150.01214.16
5.6.40.0140.00914.14
5.6.30.0090.01814.20
5.6.20.0140.00713.94
5.6.10.0190.00714.24
5.6.00.0070.01314.38
5.5.380.0300.00514.39
5.5.370.0120.00614.38
5.5.360.0120.00914.19
5.5.350.0150.01014.10
5.5.340.0100.01114.12
5.5.330.0120.00614.14
5.5.320.0170.00514.43
5.5.310.0130.00914.05
5.5.300.0150.00514.44
5.5.290.0260.00714.46
5.5.280.0120.00914.11
5.5.270.0150.00613.94
5.5.260.0100.00714.31
5.5.250.0210.00013.85
5.5.240.0110.01414.30
5.5.230.0080.02214.23
5.5.220.0140.00714.35
5.5.210.0160.02014.29
5.5.200.0150.01214.18
5.5.190.0080.02113.95
5.5.180.0040.01514.16
5.5.170.0220.00414.03
5.5.160.0140.00914.26
5.5.150.0110.00813.91
5.5.140.0080.00814.12
5.5.130.0200.01114.14
5.5.120.0090.01013.99
5.5.110.0030.01614.23
5.5.100.0250.00714.02
5.5.90.0180.00414.18
5.5.80.0070.01214.03
5.5.70.0150.00813.87
5.5.60.0130.01114.11
5.5.50.0180.01313.87
5.5.40.0190.00813.90
5.5.30.0080.00813.88
5.5.20.0190.00814.16
5.5.10.0180.00614.15
5.5.00.0080.01614.13
5.4.450.0110.00210.87
5.4.440.0120.00310.71
5.4.430.0070.00510.89
5.4.420.0080.00410.97
5.4.410.0110.00910.94
5.4.400.0110.01110.69
5.4.390.0130.01011.10
5.4.380.0160.00710.57
5.4.370.0150.00410.72
5.4.360.0140.00710.90
5.4.350.0100.00510.83
5.4.340.0080.00710.54
5.4.330.0110.00410.81
5.4.320.0090.00910.72
5.4.310.0090.00610.72
5.4.300.0110.00410.58
5.4.290.0210.00010.89
5.4.280.0090.00610.70
5.4.270.0150.00610.59
5.4.260.0140.00010.73
5.4.250.0160.00510.78
5.4.240.0140.00310.47
5.4.230.0150.00011.07
5.4.220.0150.00310.81
5.4.210.0100.00810.71
5.4.200.0110.01110.80
5.4.190.0130.00910.69
5.4.180.0150.00011.03
5.4.170.0120.00510.59
5.4.160.0100.00510.46
5.4.150.0100.01310.76
5.4.140.0220.00010.60
5.4.130.0070.01010.66
5.4.120.0160.00310.81
5.4.110.0110.00010.59
5.4.100.0000.01211.09
5.4.90.0030.01011.04
5.4.80.0120.00610.73
5.4.70.0140.00610.88
5.4.60.0140.00010.92
5.4.50.0050.00910.70
5.4.40.0070.01110.95
5.4.30.0100.00310.88
5.4.20.0060.00610.81
5.4.10.0100.00210.88
5.4.00.0140.01210.67
5.3.290.0100.00410.31
5.3.280.0120.0069.98
5.3.270.0150.00310.20
5.3.260.0070.01010.10
5.3.250.0100.00510.09
5.3.240.0070.01010.02
5.3.230.0030.0079.86
5.3.220.0080.00810.08
5.3.210.0080.00410.02
5.3.200.0060.0069.86
5.3.190.0080.00610.24
5.3.180.0090.00310.32
5.3.170.0060.00610.25
5.3.160.0080.00510.11
5.3.150.0080.00410.25
5.3.140.0080.00510.24
5.3.130.0100.00310.21
5.3.120.0000.01310.23
5.3.110.0150.00010.25
5.3.100.0060.00610.16
5.3.90.0070.00410.17
5.3.80.0140.00010.13
5.3.70.0110.00210.13
5.3.60.0090.00910.25
5.3.50.0150.00310.09
5.3.40.0120.0059.96
5.3.30.0110.00410.17
5.3.20.0150.00010.09
5.3.10.0060.0039.88
5.3.00.0030.0179.81
5.2.170.0110.0039.32
5.2.160.0080.0089.30
5.2.150.0050.0069.18
5.2.140.0070.0049.17
5.2.130.0080.0039.17
5.2.120.0070.0079.11
5.2.110.0070.0049.20
5.2.100.0070.0039.19
5.2.90.0170.0009.09
5.2.80.0170.0039.14
5.2.70.0130.0009.15
5.2.60.0090.0099.07
5.2.50.0100.0059.19
5.2.40.0080.0059.20
5.2.30.0140.0038.90
5.2.20.0030.0079.00
5.2.10.0130.0068.88
5.2.00.0140.0048.82
5.1.60.0160.0038.82
5.1.50.0120.0008.82
5.1.40.0110.0028.82
5.1.30.0120.0048.82
5.1.20.0040.0048.82
5.1.10.0000.0098.82
5.1.00.0050.0038.82
5.0.50.0070.0078.82
5.0.40.0080.0008.82
5.0.30.0080.0048.82
5.0.20.0060.0068.82
5.0.10.0070.0028.82
5.0.00.0070.0078.82
4.4.90.0070.0008.82
4.4.80.0040.0088.82
4.4.70.0030.0038.82
4.4.60.0040.0028.82
4.4.50.0070.0058.82
4.4.40.0070.0008.82
4.4.30.0070.0008.82
4.4.20.0070.0008.82
4.4.10.0000.0088.82
4.4.00.0060.0008.82
4.3.110.0090.0038.82
4.3.100.0060.0068.82
4.3.90.0060.0068.82
4.3.80.0000.0078.82
4.3.70.0050.0058.82
4.3.60.0030.0078.82
4.3.50.0000.0118.82
4.3.40.0040.0048.82
4.3.30.0020.0028.82
4.3.20.0000.0068.82
4.3.10.0030.0068.82
4.3.00.0070.0038.82

preferences:
51.85 ms | 401 KiB | 5 Q