3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new StdClass(); $obj->a = 'aaa'; $obj->b = 'bbb'; var_dump(implode('","',(array)$obj)); $ar = ['x','y']; var_dump(json_encode($ar));

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)
8.3.40.0130.00718.59
8.3.30.0040.01118.67
8.3.20.0070.00020.33
8.3.10.0080.00023.48
8.3.00.0060.00319.68
8.2.170.0100.00622.96
8.2.160.0110.00419.09
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0040.00420.98
8.2.120.0040.00426.35
8.2.110.0090.00019.13
8.2.100.0080.00417.59
8.2.90.0040.00422.36
8.2.80.0000.00917.97
8.2.70.0000.00818.04
8.2.60.0070.00017.97
8.2.50.0040.00418.10
8.2.40.0000.00820.50
8.2.30.0000.00719.24
8.2.20.0070.00018.00
8.2.10.0070.00018.10
8.2.00.0040.00418.15
8.1.270.0040.00422.05
8.1.260.0050.00226.35
8.1.250.0000.00728.09
8.1.240.0080.00022.67
8.1.230.0040.00820.90
8.1.220.0040.00417.74
8.1.210.0040.00418.83
8.1.200.0050.00317.36
8.1.190.0060.00317.35
8.1.180.0000.00818.10
8.1.170.0000.00918.53
8.1.160.0030.00319.01
8.1.150.0040.00420.52
8.1.140.0040.00419.51
8.1.130.0030.00318.70
8.1.120.0070.00017.31
8.1.110.0000.00817.34
8.1.100.0000.00817.49
8.1.90.0000.00717.29
8.1.80.0000.00817.32
8.1.70.0040.00417.45
8.1.60.0030.00617.48
8.1.50.0030.00617.49
8.1.40.0040.00417.54
8.1.30.0050.00317.67
8.1.20.0050.00517.65
8.1.10.0040.00417.41
8.1.00.0050.00317.51
8.0.300.0040.00419.98
8.0.290.0000.00816.63
8.0.280.0070.00018.38
8.0.270.0000.00817.14
8.0.260.0040.00416.63
8.0.250.0000.00716.90
8.0.240.0050.00316.79
8.0.230.0030.00316.93
8.0.220.0000.00816.74
8.0.210.0030.00316.81
8.0.200.0030.00316.86
8.0.190.0000.00816.77
8.0.180.0070.00016.86
8.0.170.0000.00816.91
8.0.160.0040.00316.88
8.0.150.0050.00316.75
8.0.140.0000.00716.70
8.0.130.0050.00013.30
8.0.120.0040.00416.68
8.0.110.0000.00716.68
8.0.100.0000.00716.68
8.0.90.0070.00016.64
8.0.80.0040.01516.81
8.0.70.0030.00516.78
8.0.60.0000.00716.87
8.0.50.0040.00416.73
8.0.30.0060.01216.79
8.0.20.0100.01017.40
8.0.10.0050.00216.77
8.0.00.0090.00916.93
7.4.330.0000.00515.55
7.4.320.0060.00016.51
7.4.300.0060.00016.64
7.4.290.0130.00416.45
7.4.280.0040.00416.54
7.4.270.0030.00516.41
7.4.260.0050.00013.28
7.4.250.0000.00716.60
7.4.240.0000.00716.41
7.4.230.0000.00716.48
7.4.220.0090.00916.43
7.4.210.0070.00716.66
7.4.200.0030.00316.61
7.4.160.0070.00916.43
7.4.150.0100.01017.40
7.4.140.0090.00817.86
7.4.130.0120.00616.46
7.4.120.0130.00916.48
7.4.110.0060.01316.36
7.4.100.0040.01216.52
7.4.90.0030.01316.35
7.4.80.0030.01319.39
7.4.70.0060.00916.37
7.4.60.0110.00416.49
7.4.50.0070.00716.30
7.4.40.0050.01116.56
7.4.30.0130.00716.32
7.4.00.0000.01514.84
7.3.330.0000.00613.10
7.3.320.0030.00313.01
7.3.310.0070.00016.13
7.3.300.0030.00316.14
7.3.290.0050.01416.28
7.3.280.0100.00616.26
7.3.270.0100.01317.40
7.3.260.0110.00716.39
7.3.250.0110.00716.22
7.3.240.0050.01116.26
7.3.230.0090.00616.22
7.3.210.0130.00316.29
7.3.200.0080.00916.18
7.3.190.0160.00016.35
7.3.180.0100.00716.54
7.3.170.0120.00616.37
7.3.160.0030.01216.43
7.3.10.0070.00715.99
7.3.00.0130.01016.50
7.2.330.0110.00716.75
7.2.320.0090.00916.66
7.2.310.0140.01116.30
7.2.300.0140.00316.51
7.2.290.0080.01216.39
7.2.130.0120.00616.40
7.2.120.0110.00716.34
7.2.110.0150.00616.60
7.2.100.0100.01016.55
7.2.90.0200.00516.48
7.2.80.0160.00816.52
7.2.70.0250.00917.00
7.2.60.0160.00616.79
7.2.50.0090.00916.45
7.2.40.0120.01516.67
7.2.30.0180.00916.71
7.2.20.0150.00316.75
7.2.10.0100.00616.41
7.2.00.0040.00917.71
7.1.250.0040.01115.25
7.1.200.0000.01315.83
7.1.100.0070.00718.20
7.1.70.0070.01416.95
7.1.60.0250.01835.00
7.1.50.0290.01334.46
7.1.40.0300.01234.42
7.1.30.0280.01334.47
7.1.20.0200.02034.26
7.1.10.0070.01316.61
7.1.00.0060.00916.87
7.0.200.0040.01516.66
7.0.190.0080.01216.61
7.0.180.0030.01716.00
7.0.170.0100.00916.00
7.0.160.0100.01016.30
7.0.150.0040.01816.40
7.0.140.0090.00616.32
7.0.130.0100.01316.75
7.0.120.0060.01816.43
7.0.110.0040.01216.25
7.0.100.0150.00616.54
7.0.90.0030.01316.21
7.0.80.0090.00616.34
7.0.70.0060.00916.48
7.0.60.0090.00915.91
7.0.50.0120.00616.25
7.0.40.0100.01016.60
7.0.30.0070.01316.37
7.0.20.0160.00316.45
7.0.10.0030.01616.62
7.0.00.0070.01316.62

preferences:
35.43 ms | 400 KiB | 5 Q