3v4l.org

run code in 300+ PHP versions simultaneously
<?php $json = '{"id":10}'; $obj = json_decode($json, TRUE); if(isset($obj['count'])) { echo "isset \n"; } if($obj['count']===null) { echo "equal null \n"; }

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)
8.3.60.0170.00318.55
8.3.50.0110.00721.92
8.3.40.0040.01118.88
8.3.30.0000.01418.96
8.3.20.0000.00920.16
8.3.10.0040.00421.77
8.3.00.0100.00019.18
8.2.180.0130.01018.54
8.2.170.0040.01122.96
8.2.160.0140.00022.21
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00319.89
8.2.110.0030.00622.31
8.2.100.0080.00417.88
8.2.90.0080.00019.23
8.2.80.0050.00317.97
8.2.70.0000.01017.50
8.2.60.0130.00018.03
8.2.50.0000.00918.07
8.2.40.0040.00419.88
8.2.30.0070.00017.95
8.2.20.0000.00717.73
8.2.10.0050.00318.09
8.2.00.0000.00817.72
8.1.280.0210.00025.92
8.1.270.0060.00319.00
8.1.260.0040.00426.35
8.1.250.0030.01028.09
8.1.240.0030.00623.84
8.1.230.0040.00720.73
8.1.220.0040.00417.79
8.1.210.0060.00318.77
8.1.200.0000.00917.00
8.1.190.0000.00917.11
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0050.00321.86
8.1.150.0030.00518.73
8.1.140.0050.00317.34
8.1.130.0030.00317.79
8.1.120.0040.00417.29
8.1.110.0060.00317.38
8.1.100.0000.00717.39
8.1.90.0050.00217.38
8.1.80.0000.00717.42
8.1.70.0030.00317.23
8.1.60.0000.00817.44
8.1.50.0060.00317.45
8.1.40.0000.00817.43
8.1.30.0060.00317.48
8.1.20.0030.00517.46
8.1.10.0000.00817.52
8.1.00.0040.00417.55
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0050.00318.44
8.0.270.0000.00717.18
8.0.260.0060.00017.25
8.0.250.0050.00216.85
8.0.240.0060.00316.97
8.0.230.0030.00316.98
8.0.220.0000.00716.79
8.0.210.0070.00016.90
8.0.200.0030.00317.00
8.0.190.0000.00717.00
8.0.180.0070.00016.79
8.0.170.0080.00016.86
8.0.160.0000.00816.89
8.0.150.0080.00016.92
8.0.140.0040.00416.78
8.0.130.0030.00313.32
8.0.120.0070.00016.70
8.0.110.0040.00416.82
8.0.100.0000.00716.71
8.0.90.0000.00816.77
8.0.80.0100.01316.93
8.0.70.0050.00216.83
8.0.60.0000.00816.95
8.0.50.0030.00516.94
8.0.30.0130.01017.15
8.0.20.0150.01117.40
8.0.10.0050.00316.89
8.0.00.0090.00916.79
7.4.330.0050.00015.03
7.4.320.0040.00416.55
7.4.300.0060.00016.48
7.4.290.0060.00016.63
7.4.280.0060.00316.41
7.4.270.0000.00716.58
7.4.260.0000.00716.56
7.4.250.0040.00416.47
7.4.240.0020.00516.57
7.4.230.0070.00016.69
7.4.220.0100.01616.69
7.4.210.0030.01616.54
7.4.200.0000.00716.24
7.4.160.0060.00916.38
7.4.150.0090.00917.40
7.4.140.0130.00417.86
7.4.130.0100.01016.54
7.4.120.0070.01216.63
7.4.110.0090.00916.56
7.4.100.0080.00816.52
7.4.90.0070.01116.41
7.4.80.0080.00816.31
7.4.70.0140.00616.56
7.4.60.0070.01116.60
7.4.50.0050.00016.51
7.4.40.0080.00816.55
7.4.30.0160.00316.65
7.4.00.0030.01314.94
7.3.330.0030.00313.14
7.3.320.0150.00013.31
7.3.310.0060.00016.39
7.3.300.0000.00716.33
7.3.290.0060.01116.36
7.3.280.0100.00616.32
7.3.270.0070.01017.40
7.3.260.0110.00716.32
7.3.250.0070.01016.43
7.3.240.0090.00616.37
7.3.230.0200.00316.52
7.3.210.0140.00416.42
7.3.200.0090.00919.39
7.3.190.0100.00616.34
7.3.180.0090.00816.27
7.3.170.0030.01416.43
7.3.160.0080.01416.45
7.3.10.0070.00616.56
7.3.00.0040.00716.47
7.2.330.0090.00916.57
7.2.320.0080.00816.70
7.2.310.0160.00316.53
7.2.300.0070.01016.79
7.2.290.0030.01316.36
7.2.130.0090.00716.74
7.2.120.0070.00716.83
7.2.110.0070.00716.89
7.2.100.0000.01416.73
7.2.90.0080.00616.80
7.2.80.0050.00516.92
7.2.70.0060.00816.86
7.2.60.0040.00916.67
7.2.50.0060.00816.82
7.2.40.0060.00816.97
7.2.30.0050.00817.09
7.2.20.0050.00716.73
7.2.10.0020.01316.93
7.2.00.0040.00617.76
7.1.250.0030.01015.64
7.1.200.0090.00315.89
7.1.100.0000.01118.00
7.1.70.0090.00617.14
7.1.60.0060.01919.46
7.1.50.0080.01216.93
7.1.00.0000.08022.45
7.0.200.0100.00714.71
7.0.140.0100.05322.09
7.0.60.0070.06319.86
7.0.50.0100.08317.88
7.0.40.0100.04720.02
7.0.30.0400.05720.13
7.0.20.0330.04719.99
7.0.10.0170.08020.20
7.0.00.0170.07720.13
5.6.280.0000.07720.99
5.6.210.0100.07720.50
5.6.200.0100.05318.18
5.6.190.0070.05720.39
5.6.180.0500.07320.45
5.6.170.0200.07320.44
5.6.160.0100.05020.51
5.6.150.0070.08318.22
5.6.140.0000.05318.18
5.6.130.0030.05718.11
5.6.120.0070.06321.00
5.6.110.0070.08320.88
5.6.100.0070.08021.04
5.6.90.0030.04321.09
5.6.80.0030.04020.53
5.5.350.0400.06720.44
5.5.340.0030.07017.92
5.5.330.0030.04720.43
5.5.320.0030.05320.29
5.5.310.0130.04020.41
5.5.300.0070.06017.91
5.5.290.0130.07717.91
5.5.280.0100.06320.79
5.5.270.0070.08320.74
5.5.260.0030.04020.95
5.5.250.0030.08020.57
5.5.240.0030.08320.25
5.4.450.0700.06319.57
5.4.440.1100.04719.10
5.4.430.0400.05019.42
5.4.420.1000.06019.57
5.4.410.1130.05319.47
5.4.400.0870.05719.31
5.4.390.0170.05318.71
5.4.380.0170.08718.47
5.4.370.0300.07018.52
5.4.360.0270.07318.46
5.4.350.0170.05718.47
5.4.340.0100.06318.54
5.4.320.0230.05318.66
5.4.310.0230.05318.56
5.4.300.0170.05718.64
5.4.290.0230.04318.56
5.4.280.0200.05018.77
5.4.270.0230.04318.73
5.4.260.0230.05318.47
5.4.250.0130.06318.76
5.4.240.0300.04718.64
5.4.230.0270.06318.46
5.4.220.0130.06018.72
5.4.210.0130.05318.74
5.4.200.0300.03716.61
5.4.190.0130.06018.75
5.4.180.0170.05718.60
5.4.170.0230.05018.63
5.4.160.0200.05018.71
5.4.150.0170.07718.45
5.4.140.0170.05316.20
5.4.130.0200.05016.19
5.4.120.0270.05016.24
5.4.110.0200.05316.08
5.4.100.0200.05016.34
5.4.90.0200.05316.24
5.4.80.0200.05016.03
5.4.70.0300.04716.16
5.4.60.0170.05716.11
5.4.50.0230.04316.30
5.4.40.0130.05716.23
5.4.30.0230.04316.18
5.4.20.0170.05716.05
5.4.10.0330.04016.15
5.4.00.0170.05015.80
5.3.290.0230.05014.56
5.3.280.0170.05714.58
5.3.270.0200.05314.46
5.3.260.0270.05314.55
5.3.250.0070.06314.57
5.3.240.0200.05314.52
5.3.230.0230.04714.55
5.3.220.0170.05014.53
5.3.210.0230.04714.57
5.3.200.0130.05314.64
5.3.190.0200.05014.53
5.3.180.0200.05014.64
5.3.170.0230.05314.57
5.3.160.0200.05014.50
5.3.150.0170.05714.51
5.3.140.0170.05714.54
5.3.130.0300.05314.53
5.3.120.0200.05714.47
5.3.110.0130.05714.40
5.3.100.0230.05013.98
5.3.90.0170.05313.91
5.3.80.0230.05314.09
5.3.70.0200.07013.94
5.3.60.0230.04013.99
5.3.50.0200.04313.89
5.3.40.0070.06313.94
5.3.30.0130.05313.90
5.3.20.0300.03713.55
5.3.10.0170.04713.57
5.3.00.0200.04713.59
5.2.170.0200.03311.05
5.2.160.0100.04711.09
5.2.150.0230.03011.11
5.2.140.0200.03711.16
5.2.130.0200.03311.03
5.2.120.0070.04711.02
5.2.110.0200.04011.04
5.2.100.0230.03711.23
5.2.90.0070.04711.14
5.2.80.0130.04311.11
5.2.70.0100.04711.26
5.2.60.0130.04311.00
5.2.50.0200.04011.16
5.2.40.0170.03710.94
5.2.30.0170.03710.88
5.2.20.0100.05010.98
5.2.10.0100.05710.98
5.2.00.0170.05010.67
5.1.60.0130.04710.05
5.1.50.0200.04010.04
5.1.40.0100.0479.98
5.1.30.0170.03010.39
5.1.20.0100.03710.38
5.1.10.0070.04010.04
5.1.00.0130.03310.09
5.0.50.0070.0308.61
5.0.40.0100.0278.42
5.0.30.0070.0538.25
5.0.20.0070.0278.23
5.0.10.0130.0238.15
5.0.00.0130.0408.17
4.4.90.0030.0235.93
4.4.80.0000.0305.88
4.4.70.0100.0175.81
4.4.60.0100.0205.91
4.4.50.0130.0175.86
4.4.40.0100.0305.90
4.4.30.0030.0235.90
4.4.20.0100.0205.93
4.4.10.0070.0235.94
4.4.00.0070.0335.88
4.3.110.0070.0275.86
4.3.100.0030.0235.80
4.3.90.0070.0205.82
4.3.80.0030.0375.82
4.3.70.0100.0175.79
4.3.60.0070.0205.79
4.3.50.0030.0235.85
4.3.40.0100.0305.85
4.3.30.0030.0234.55
4.3.20.0030.0234.63
4.3.10.0030.0234.52
4.3.00.0070.03314.62

preferences:
57.64 ms | 401 KiB | 5 Q