3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array( 'foo' => false, 'bar' => '', 'baz' => null, 'olo' => 0, ); var_dump( isset($arr['foo']), isset($arr['bar']), isset($arr['baz']), isset($arr['olo']) );

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)
8.3.60.0140.00416.21
8.3.50.0040.01117.92
8.3.40.0060.00918.70
8.3.30.0140.00018.92
8.3.20.0050.00320.29
8.3.10.0040.00421.74
8.3.00.0040.00421.01
8.2.180.0160.00618.16
8.2.170.0110.00422.96
8.2.160.0040.01122.18
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0100.00026.16
8.2.120.0040.00419.77
8.2.110.0030.00721.89
8.2.100.0060.00617.63
8.2.90.0060.00319.27
8.2.80.0000.00817.97
8.2.70.0060.00617.63
8.2.60.0050.00318.04
8.2.50.0060.00318.07
8.2.40.0080.00018.05
8.2.30.0050.00318.12
8.2.20.0080.00017.67
8.2.10.0000.00817.89
8.2.00.0040.00417.48
8.1.280.0100.01025.92
8.1.270.0030.00620.65
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.88
8.1.230.0000.01217.48
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0070.00417.23
8.1.190.0000.00816.88
8.1.180.0030.00518.10
8.1.170.0040.00418.52
8.1.160.0040.00421.88
8.1.150.0030.00318.68
8.1.140.0040.00417.29
8.1.130.0000.00717.82
8.1.120.0050.00317.45
8.1.110.0070.00017.37
8.1.100.0050.00317.25
8.1.90.0080.00017.36
8.1.80.0000.00817.26
8.1.70.0000.00717.34
8.1.60.0040.00417.54
8.1.50.0040.00417.47
8.1.40.0000.00817.42
8.1.30.0000.00817.51
8.1.20.0000.00717.46
8.1.10.0000.00817.43
8.1.00.0000.00717.30
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0000.00718.33
8.0.270.0080.00017.18
8.0.260.0000.00617.23
8.0.250.0030.00316.77
8.0.240.0040.00416.79
8.0.230.0000.00716.90
8.0.220.0030.00316.78
8.0.210.0100.00016.71
8.0.200.0020.00516.81
8.0.190.0040.00416.79
8.0.180.0000.00716.82
8.0.170.0000.00816.79
8.0.160.0040.00416.86
8.0.150.0040.00416.80
8.0.140.0070.00016.79
8.0.130.0000.00513.26
8.0.120.0030.00516.82
8.0.110.0040.00416.80
8.0.100.0040.00416.76
8.0.90.0040.00416.81
8.0.80.0060.00916.79
8.0.70.0030.00316.88
8.0.60.0030.00516.72
8.0.50.0040.00416.73
8.0.30.0110.01017.04
8.0.20.0070.01217.40
8.0.10.0000.00817.05
8.0.00.0110.00816.64
7.4.330.0000.00515.05
7.4.320.0030.00316.42
7.4.300.0030.00316.43
7.4.290.0030.00316.50
7.4.280.0040.00616.37
7.4.270.0000.00616.52
7.4.260.0030.00316.35
7.4.250.0000.00716.49
7.4.240.0040.00416.39
7.4.230.0030.00316.56
7.4.220.0130.01016.59
7.4.210.0090.00616.46
7.4.200.0000.00716.61
7.4.160.0100.00616.45
7.4.150.0230.00317.40
7.4.140.0110.00917.86
7.4.130.0110.00816.37
7.4.120.0100.00716.43
7.4.110.0120.01216.43
7.4.100.0140.00416.28
7.4.90.0090.00816.46
7.4.80.0140.00819.39
7.4.70.0070.01416.55
7.4.60.0060.00916.31
7.4.50.0000.00616.48
7.4.40.0140.00316.43
7.4.30.0090.00916.37
7.4.00.0110.00414.67
7.3.330.0000.00513.08
7.3.320.0110.00313.07
7.3.310.0060.00016.02
7.3.300.0000.00616.18
7.3.290.0050.01016.22
7.3.280.0080.00916.17
7.3.270.0100.01417.40
7.3.260.0090.01016.39
7.3.250.0140.00316.36
7.3.240.0140.00316.10
7.3.230.0030.01316.39
7.3.210.0070.01016.21
7.3.200.0060.00916.33
7.3.190.0090.00716.03
7.3.180.0140.00916.15
7.3.170.0090.01216.43
7.3.160.0090.00616.16
7.3.10.0030.00915.58
7.3.00.0060.00616.22
7.2.330.0030.01716.31
7.2.320.0040.01216.26
7.2.310.0130.01016.50
7.2.300.0090.00816.44
7.2.290.0150.00716.54
7.2.130.0080.00816.08
7.2.120.0060.00916.60
7.2.110.0070.00716.61
7.2.100.0130.00316.62
7.2.90.0120.00816.53
7.2.80.0070.01116.45
7.2.70.0160.00616.46
7.2.60.0140.00716.73
7.2.50.0130.01316.44
7.2.40.0040.01316.77
7.2.30.0090.00616.58
7.2.20.0070.01016.41
7.2.10.0000.01516.40
7.2.00.0060.00918.01
7.1.250.0000.01115.38
7.1.100.0070.00417.59
7.1.70.0000.00817.03
7.1.60.0170.00719.46
7.1.50.0030.01916.68
7.1.00.0070.07322.50
7.0.200.0030.00516.72
7.0.140.0070.06021.97
7.0.60.0070.08320.07
7.0.50.0030.05017.84
7.0.40.0100.03720.09
7.0.30.0270.07720.20
7.0.20.0170.08720.00
7.0.10.0030.05720.00
7.0.00.0070.08720.19
5.6.280.0000.07720.86
5.6.210.0030.04320.50
5.6.200.0000.05318.19
5.6.190.0130.07020.27
5.6.180.0500.04720.27
5.6.170.0300.07320.33
5.6.160.0100.08320.37
5.6.150.0100.08018.18
5.6.140.0070.04718.18
5.6.130.0100.06318.18
5.6.120.0030.07720.89
5.6.110.0230.04721.08
5.6.100.0100.07321.07
5.6.90.0100.07720.94
5.6.80.0030.04020.38
5.5.350.0370.06720.41
5.5.340.0100.06717.89
5.5.330.0100.08020.06
5.5.320.0030.08720.13
5.5.310.0400.06720.18
5.5.300.0170.05717.88
5.5.290.0100.06317.87
5.5.280.0030.04720.80
5.5.270.0000.09020.77
5.5.260.0100.06720.75
5.5.250.0070.04020.77
5.5.240.0130.07320.11
5.4.450.0070.07719.26
5.4.440.1400.04019.43
5.4.430.2430.04319.57
5.4.420.2870.03319.20
5.4.410.2870.03719.27
5.4.400.0230.05319.20
5.4.390.0170.05319.09
5.4.380.0270.03318.92
5.4.370.0130.07019.07
5.4.360.0270.06719.06
5.4.350.0200.04318.91
5.4.340.0170.04018.81
5.4.320.0130.04019.10
5.4.310.0070.07718.79
5.4.300.0200.04719.23
5.4.290.0200.04319.16
5.4.280.0230.05319.24
5.4.270.0170.03719.09
5.4.260.0130.07719.06
5.4.250.0230.03719.12
5.4.240.0170.04018.94
5.4.230.0200.03719.23
5.4.220.0230.04319.23
5.4.210.0700.06019.10
5.4.200.0270.03718.92
5.4.190.0230.07718.87
5.4.180.0270.05719.05
5.4.170.0230.05319.23
5.4.160.0330.04019.04
5.4.150.0300.04318.91
5.4.140.0170.04316.33
5.4.130.0400.05316.34
5.4.120.0300.05316.21
5.4.110.0230.06716.20
5.4.100.0170.06016.39
5.4.90.0270.05716.39
5.4.80.0230.05316.44
5.4.70.0270.02316.23
5.4.60.0200.03016.45
5.4.50.0200.03016.37
5.4.40.0200.04016.46
5.4.30.0270.06716.43
5.4.20.0130.06016.17
5.4.10.0370.06316.28
5.4.00.0200.07016.00
5.3.290.0230.07714.50
5.3.280.0170.08014.46
5.3.270.0200.07314.46
5.3.260.0230.07314.46
5.3.250.0200.05014.45
5.3.240.0300.06714.57
5.3.230.0230.07314.68
5.3.220.0330.06014.65
5.3.210.0230.05014.61
5.3.200.0230.03314.51
5.3.190.0230.05714.39
5.3.180.0170.06014.55
5.3.170.0200.06314.51
5.3.160.0300.07014.51
5.3.150.0170.04314.39
5.3.140.0100.04314.38
5.3.130.0270.06714.45
5.3.120.0170.04714.63
5.3.110.0270.07314.38
5.3.100.0270.04014.13
5.3.90.0200.07013.90
5.3.80.0300.06013.85
5.3.70.0230.06313.86
5.3.60.0200.07313.97
5.3.50.0270.04013.74
5.3.40.0230.07013.78
5.3.30.0200.07013.81
5.3.20.0330.03313.52
5.3.10.0230.05313.68
5.3.00.0330.06713.57
5.2.170.0130.05311.30
5.2.160.0230.05711.05
5.2.150.0300.02311.30
5.2.140.0230.05011.20
5.2.130.0170.04311.26
5.2.120.0100.03310.95
5.2.110.0170.04011.04
5.2.100.0270.03311.01
5.2.90.0300.04710.99
5.2.80.0200.05011.25
5.2.70.0170.04311.18
5.2.60.0170.05011.09
5.2.50.0270.03310.87
5.2.40.0200.03710.93
5.2.30.0270.05010.98
5.2.20.0130.05010.86
5.2.10.0170.03010.77
5.2.00.0070.03310.68
5.1.60.0100.03010.15
5.1.50.0230.0439.92
5.1.40.0130.0379.95
5.1.30.0100.03710.48
5.1.20.0270.04010.21
5.1.10.0230.04310.13
5.1.00.0200.05310.04
5.0.50.0100.0209.86
5.0.40.0070.0479.86
5.0.30.0070.0479.86
5.0.20.0130.0179.86
5.0.10.0070.0209.86
5.0.00.0100.0579.86
4.4.90.0070.0379.86
4.4.80.0070.0309.86
4.4.70.0130.0139.86
4.4.60.0100.0139.86
4.4.50.0030.0179.86
4.4.40.0030.0409.86
4.4.30.0130.0209.86
4.4.20.0070.0339.86
4.4.10.0030.0239.86
4.4.00.0100.0279.86
4.3.110.0030.0179.86
4.3.100.0100.0179.86
4.3.90.0030.0279.86
4.3.80.0030.0279.86
4.3.70.0070.0239.86
4.3.60.0030.0179.86
4.3.50.0100.0209.86
4.3.40.0130.0479.86
4.3.30.0030.0179.86
4.3.20.0030.0339.86
4.3.10.0070.0209.86
4.3.00.0070.0179.86

preferences:
47.6 ms | 400 KiB | 5 Q