3v4l.org

run code in 300+ PHP versions simultaneously
<?php <?php echo json_encode([], JSON_FORCE_OBJECT); echo json_encode(['test' => []], JSON_FORCE_OBJECT); echo json_encode(['test' => [1,2,3]], JSON_FORCE_OBJECT);

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)
5.4.320.0070.04312.50
5.4.310.0080.03512.49
5.4.300.0060.03612.50
5.4.290.0070.03612.49
5.4.280.0090.03612.39
5.4.270.0070.03812.39
5.4.260.0070.04112.39
5.4.250.0070.03812.39
5.4.240.0070.03412.39
5.4.230.0040.04412.38
5.4.220.0070.04112.38
5.4.210.0030.03812.38
5.4.200.0060.03812.38
5.4.190.0050.04112.38
5.4.180.0050.03812.38
5.4.170.0080.03512.38
5.4.160.0070.03512.38
5.4.150.0080.03512.38
5.4.140.0060.03712.07
5.4.130.0050.03612.05
5.4.120.0030.03812.02
5.4.110.0030.03812.01
5.4.100.0030.03812.02
5.4.90.0050.03712.01
5.4.80.0040.03812.01
5.4.70.0010.03912.01
5.4.60.0050.03512.00
5.4.50.0030.03812.01
5.4.40.0040.04012.00
5.4.30.0070.04211.99
5.4.20.0080.03311.99
5.4.10.0050.03411.99
5.4.00.0050.03611.48
5.3.290.0040.04812.80
5.3.280.0060.03912.71
5.3.270.0050.04012.73
5.3.260.0040.04112.72
5.3.250.0090.03512.71
5.3.240.0040.04012.72
5.3.230.0070.03712.71
5.3.220.0040.04112.68
5.3.210.0050.03912.68
5.3.200.0100.03812.68
5.3.190.0060.03712.68
5.3.180.0070.03612.67
5.3.170.0050.03812.67
5.3.160.0070.03512.68
5.3.150.0030.04212.67
5.3.140.0040.03812.66
5.3.130.0070.03712.66
5.3.120.0070.04012.65
5.3.110.0050.04012.66
5.3.100.0030.04012.12
5.3.90.0070.03512.09
5.3.80.0070.03512.07
5.3.70.0080.03512.07
5.3.60.0040.03912.07
5.3.50.0070.03412.00
5.3.40.0070.03612.00
5.3.30.0080.03711.95
5.3.20.0090.03211.73
5.3.10.0070.03411.70
5.3.00.0070.03711.70
5.2.170.0030.0319.18
5.2.160.0020.0319.18
5.2.150.0050.0309.18
5.2.140.0030.0329.18
5.2.130.0060.0269.14
5.2.120.0050.0309.14
5.2.110.0080.0249.14
5.2.100.0070.0319.14
5.2.90.0100.0329.14
5.2.80.0050.0309.13
5.2.70.0030.0359.14
5.2.60.0020.0329.09
5.2.50.0040.0329.05
5.2.40.0070.0309.04
5.2.30.0080.0259.02
5.2.20.0040.0299.00
5.2.10.0030.0298.92
5.2.00.0060.0268.79
5.1.60.0060.0298.06
5.1.50.0050.0248.06
5.1.40.0080.0208.05
5.1.30.0050.0258.40
5.1.20.0060.0278.42
5.1.10.0020.0288.14
5.1.00.0040.0258.14
5.0.50.0060.0246.63
5.0.40.0030.0196.48
5.0.30.0010.0336.29
5.0.20.0030.0216.26
5.0.10.0010.0226.24
5.0.00.0010.0416.23
4.4.90.0010.0174.77
4.4.80.0030.0154.75
4.4.70.0030.0144.75
4.4.60.0010.0224.75
4.4.50.0030.0154.77
4.4.40.0020.0304.71
4.4.30.0020.0174.76
4.4.20.0040.0154.85
4.4.10.0030.0154.85
4.4.00.0010.0274.76
4.3.110.0050.0144.67
4.3.100.0080.0164.66
4.3.90.0020.0154.63
4.3.80.0020.0254.58
4.3.70.0040.0144.63
4.3.60.0070.0174.63
4.3.50.0050.0204.63
4.3.40.0020.0294.54
4.3.30.0000.0193.29
4.3.20.0010.0173.26
4.3.10.0010.0173.22
4.3.00.0100.0237.20

preferences:
134.3 ms | 1394 KiB | 7 Q