3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 'a'; var_dump(isset($var['waa']));

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)
8.3.40.0070.00718.45
8.3.30.0110.00318.95
8.3.20.0070.00720.30
8.3.10.0090.00023.66
8.3.00.0080.00020.55
8.2.170.0050.00922.96
8.2.160.0140.00022.12
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0050.00226.16
8.2.120.0140.00020.52
8.2.110.0090.00022.08
8.2.100.0160.00017.78
8.2.90.0000.00719.23
8.2.80.0000.00818.04
8.2.70.0040.00417.50
8.2.60.0080.00017.80
8.2.50.0040.00418.07
8.2.40.0000.00918.12
8.2.30.0000.00717.94
8.2.20.0050.00217.70
8.2.10.0030.00617.60
8.2.00.0040.00417.66
8.1.270.0040.00423.84
8.1.260.0090.00026.35
8.1.250.0000.00828.09
8.1.240.0030.00623.78
8.1.230.0080.00319.17
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.11
8.1.190.0040.00417.50
8.1.180.0080.00018.10
8.1.170.0060.00318.56
8.1.160.0000.00721.94
8.1.150.0030.00318.44
8.1.140.0000.00717.29
8.1.130.0040.00417.50
8.1.120.0070.00317.40
8.1.110.0030.00617.39
8.1.100.0050.00317.26
8.1.90.0040.00417.37
8.1.80.0030.00317.34
8.1.70.0000.00717.25
8.1.60.0080.00017.51
8.1.50.0060.00317.36
8.1.40.0040.00417.41
8.1.30.0050.00317.62
8.1.20.0000.00817.45
8.1.10.0040.00717.46
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0040.00417.03
8.0.280.0000.00818.31
8.0.270.0070.00017.18
8.0.260.0060.00016.76
8.0.250.0030.00316.85
8.0.240.0040.00416.80
8.0.230.0030.00316.89
8.0.220.0080.00016.80
8.0.210.0040.00316.86
8.0.200.0030.00616.87
8.0.190.0080.00016.87
8.0.180.0050.00316.82
8.0.170.0000.00816.73
8.0.160.0000.00716.68
8.0.150.0000.00716.82
8.0.140.0000.00816.84
8.0.130.0030.00313.25
8.0.120.0070.00016.81
8.0.110.0000.00716.82
8.0.100.0040.00416.91
8.0.90.0040.00416.82
8.0.80.0110.00416.80
8.0.70.0000.00816.65
8.0.60.0040.00416.86
8.0.50.0040.00416.62
8.0.30.0100.01317.01
8.0.20.0050.01317.40
8.0.10.0000.00716.74
8.0.00.0070.01416.68
7.4.330.0000.00515.00
7.4.320.0000.00716.42
7.4.300.0030.00316.54
7.4.290.0040.00416.55
7.4.280.0040.00416.53
7.4.270.0000.00716.43
7.4.260.0030.00316.51
7.4.250.0000.00716.51
7.4.240.0020.00516.41
7.4.230.0070.00016.40
7.4.220.0150.00316.38
7.4.210.0090.00516.46
7.4.200.0070.00016.23
7.4.190.0070.00016.62
7.4.160.0080.01316.39
7.4.150.0030.01517.40
7.4.140.0120.00917.86
7.4.130.0100.00816.56
7.4.120.0110.00616.60
7.4.110.0000.01616.38
7.4.100.0090.00916.29
7.4.90.0130.00416.39
7.4.80.0030.01416.22
7.4.70.0070.01316.38
7.4.60.0130.00316.42
7.4.50.0040.00416.30
7.4.40.0030.01322.77
7.4.30.0070.01016.41
7.4.10.0030.01414.76
7.4.00.0080.00914.96
7.3.330.0060.00013.04
7.3.320.0000.00613.03
7.3.310.0050.00216.23
7.3.300.0060.00016.10
7.3.290.0060.01016.25
7.3.280.0110.00716.21
7.3.270.0040.01417.40
7.3.260.0070.01016.44
7.3.250.0100.01016.24
7.3.240.0150.00316.24
7.3.230.0070.01016.39
7.3.210.0150.00616.29
7.3.200.0150.00619.39
7.3.190.0130.00616.34
7.3.180.0110.00516.24
7.3.170.0100.00716.27
7.3.160.0090.00616.11
7.3.130.0080.00914.76
7.3.120.0050.01214.74
7.3.110.0070.01114.69
7.3.100.0070.00814.58
7.3.90.0070.00914.48
7.3.80.0050.00514.55
7.3.70.0070.00714.80
7.3.60.0040.00914.50
7.3.50.0030.00914.62
7.3.40.0060.00614.58
7.3.30.0100.00514.59
7.3.20.0070.00416.47
7.3.10.0080.00616.46
7.3.00.0050.00716.51
7.2.330.0040.01416.42
7.2.320.0090.00616.45
7.2.310.0120.00916.36
7.2.300.0080.00916.28
7.2.290.0100.01016.46
7.2.260.0080.01014.80
7.2.250.0050.01015.02
7.2.240.0070.00814.84
7.2.230.0060.00814.89
7.2.220.0080.00714.74
7.2.210.0070.00614.94
7.2.200.0080.00314.88
7.2.190.0060.00814.99
7.2.180.0070.00514.85
7.2.170.0050.01114.85
7.2.160.0110.00214.79
7.2.150.0020.01116.58
7.2.140.0010.01116.76
7.2.130.0100.00716.80
7.2.120.0050.01016.73
7.2.110.0070.00516.76
7.2.100.0080.00816.64
7.2.90.0070.00516.79
7.2.80.0070.00616.76
7.2.70.0050.01016.69
7.2.60.0040.01216.74
7.2.50.0090.00616.78
7.2.40.0030.01216.78
7.2.30.0050.00716.78
7.2.20.0070.00716.76
7.2.10.0060.00716.85
7.2.00.0070.00617.26
7.1.330.0020.01215.59
7.1.320.0030.00915.71
7.1.310.0070.00715.70
7.1.300.0070.00815.72
7.1.290.0090.00415.71
7.1.280.0070.00615.61
7.1.270.0080.00215.58
7.1.260.0090.00315.71
7.1.250.0070.00615.56
7.1.240.0050.00915.58
7.1.230.0040.01015.63
7.1.220.0050.00815.65
7.1.210.0050.00715.56
7.1.200.0060.00615.67
7.1.190.0060.01015.63
7.1.180.0090.00515.69
7.1.170.0070.00515.66
7.1.160.0060.00915.54
7.1.150.0040.00915.75
7.1.140.0060.00615.69
7.1.130.0050.00715.62
7.1.120.0060.00915.64
7.1.110.0040.00815.69
7.1.100.0040.00916.13
7.1.90.0070.00715.53
7.1.80.0040.00915.47
7.1.70.0050.00815.90
7.1.60.0070.00816.27
7.1.50.0070.01015.84
7.1.40.0070.00515.74
7.1.30.0050.00715.59
7.1.20.0090.00515.63
7.1.10.0060.00515.66
7.1.00.0060.02016.99
7.0.330.0070.00515.19
7.0.320.0050.00715.21
7.0.310.0040.00715.24
7.0.300.0050.00615.08
7.0.290.0050.00715.22
7.0.280.0040.00915.35
7.0.270.0040.00915.16
7.0.260.0080.00515.12
7.0.250.0070.00515.26
7.0.240.0080.00415.37
7.0.230.0050.00615.20
7.0.220.0020.00715.31
7.0.210.0030.00915.32
7.0.200.0100.00515.40
7.0.190.0050.00615.30
7.0.180.0060.00515.18
7.0.170.0070.00715.27
7.0.160.0060.00715.29
7.0.150.0060.00815.27
7.0.140.0050.02216.60
7.0.130.0080.00515.31
7.0.120.0070.00515.20
7.0.110.0060.00715.24
7.0.100.0090.00615.24
7.0.90.0050.00915.26
7.0.80.0040.00815.27
7.0.70.0070.00615.17
7.0.60.0060.02016.14
7.0.50.0060.01515.79
7.0.40.0040.01814.67
7.0.30.0110.01714.58
7.0.20.0120.02014.59
7.0.10.0050.02414.64
7.0.00.0080.01914.70
5.6.400.0030.00813.98
5.6.390.0030.01014.19
5.6.380.0060.00814.11
5.6.370.0060.00714.17
5.6.360.0040.01014.30
5.6.350.0030.00914.15
5.6.340.0010.01214.22
5.6.330.0030.01114.24
5.6.320.0050.00714.20
5.6.310.0090.00614.28
5.6.300.0030.01114.22
5.6.290.0090.00414.32
5.6.280.0080.01915.47
5.6.270.0060.00814.16
5.6.260.0070.00814.17
5.6.250.0060.00914.14
5.6.240.0060.00914.14
5.6.230.0040.00714.29
5.6.220.0080.00614.03
5.6.210.0040.01615.36
5.6.200.0070.01514.92
5.6.190.0040.02215.45
5.6.180.0120.01915.40
5.6.170.0100.02215.40
5.6.160.0060.02115.42
5.6.150.0050.01614.94
5.6.140.0060.01614.87
5.6.130.0050.01614.93
5.6.120.0060.01515.67
5.6.110.0030.01615.51
5.6.100.0050.02415.52
5.6.90.0060.02515.44
5.6.80.0060.02315.31
5.6.70.0810.01115.38
5.6.60.0030.00914.16
5.6.50.0050.00814.14
5.6.40.0060.00614.05
5.6.30.0030.01013.95
5.6.20.0050.00814.04
5.6.10.0040.01014.01
5.6.00.0050.00814.13
5.5.380.0060.00613.58
5.5.370.0070.00713.46
5.5.360.0030.00713.44
5.5.350.0040.02214.90
5.5.340.0060.01314.26
5.5.330.0070.01814.80
5.5.320.0120.01814.75
5.5.310.0080.01414.72
5.5.300.0050.02414.37
5.5.290.0070.01914.30
5.5.280.0080.01714.86
5.5.270.0050.01414.86
5.5.260.0040.02314.94
5.5.250.0060.02014.76
5.5.240.0060.02314.84
5.5.230.0050.00813.36
5.5.220.0040.00913.37
5.5.210.0070.00613.34
5.5.200.0030.00713.49
5.5.190.0040.00813.41
5.5.180.0030.00713.46
5.5.170.0050.00713.26
5.5.160.0070.00713.46
5.5.150.0050.00913.45
5.5.140.0030.01013.41
5.5.130.0070.00613.40
5.5.120.0050.00713.40
5.5.110.0030.01013.39
5.5.100.0030.01013.44
5.5.90.0070.00513.54
5.5.80.0060.00613.42
5.5.70.0060.00813.34
5.5.60.0050.00713.51
5.5.50.0040.00713.48
5.5.40.0060.00813.42
5.5.30.0050.00813.32
5.5.20.0040.00713.47
5.5.10.0030.00913.32
5.5.00.0020.00913.36
5.4.450.0080.02013.02
5.4.440.0060.01813.05
5.4.430.0060.02213.11
5.4.420.0080.01213.07
5.4.410.0050.01713.03
5.4.400.0080.01212.93
5.4.390.0050.02213.04
5.4.380.0080.02012.97
5.4.370.0080.01813.01
5.4.360.0090.01813.03
5.4.350.0090.01312.97
5.4.340.0070.02113.03
5.4.330.0050.00511.40
5.4.320.0050.01812.95
5.4.310.0090.01712.92
5.4.300.0070.01813.03
5.4.290.0080.01313.01
5.4.280.0080.01512.89
5.4.270.0060.01112.96
5.4.260.0090.01813.01
5.4.250.0090.01513.03
5.4.240.0070.01912.99
5.4.230.0100.01612.98
5.4.220.0110.01613.03
5.4.210.0090.01813.02
5.4.200.0090.01913.01
5.4.190.0100.01912.91
5.4.180.0090.01212.92
5.4.170.0090.01313.01
5.4.160.0080.01712.98
5.4.150.0110.01312.99
5.4.140.0080.02012.53
5.4.130.0070.01812.44
5.4.120.0070.01912.42
5.4.110.0050.01212.41
5.4.100.0070.01312.48
5.4.90.0050.01412.46
5.4.80.0050.01212.47
5.4.70.0070.01012.47
5.4.60.0080.01012.40
5.4.50.0070.00912.41
5.4.40.0090.01012.46
5.4.30.0050.01212.44
5.4.20.0050.01212.30
5.4.10.0060.01712.43
5.4.00.0060.00912.31
5.3.290.0090.01312.01
5.3.280.0060.01511.99
5.3.270.0070.01912.00
5.3.260.0090.01612.03
5.3.250.0060.02112.01
5.3.240.0060.02012.00
5.3.230.0070.01412.03
5.3.220.0080.01411.97
5.3.210.0040.01411.99
5.3.200.0030.01512.00
5.3.190.0060.01212.01
5.3.180.0040.01311.97
5.3.170.0050.01312.04
5.3.160.0070.01011.99
5.3.150.0070.01112.03
5.3.140.0040.01611.98
5.3.130.0060.01112.02
5.3.120.0040.01411.99
5.3.110.0070.01012.03
5.3.100.0050.01211.88
5.3.90.0080.00911.88
5.3.80.0040.01111.87
5.3.70.0070.01311.85
5.3.60.0080.01211.91
5.3.50.0090.01111.89
5.3.40.0070.01111.86
5.3.30.0080.01011.84
5.3.20.0070.01111.83
5.3.10.0070.01011.82
5.3.00.0050.01211.80
5.2.170.0050.01712.02
5.2.160.0050.01612.02
5.2.150.0060.01812.02
5.2.140.0120.01312.02
5.2.130.0060.01612.02
5.2.120.0080.01512.02
5.2.110.0070.01412.02
5.2.100.0100.02012.02
5.2.90.0070.01712.02
5.2.80.0070.01812.02
5.2.70.0110.01712.02
5.2.60.0100.01512.02
5.2.50.0090.01512.02
5.2.40.0050.01712.02
5.2.30.0080.01812.02
5.2.20.0060.01812.02
5.2.10.0120.01212.02
5.2.00.0090.01412.02
5.1.60.0070.01612.02
5.1.50.0080.01812.02
5.1.40.0080.01812.02
5.1.30.0110.01512.02
5.1.20.0110.02112.02
5.1.10.0070.02412.02
5.1.00.0130.02612.02
5.0.50.0080.02312.02
5.0.40.0080.02212.02
5.0.30.0030.03212.02
5.0.20.0080.01112.02
5.0.10.0050.02512.02
5.0.00.0050.03112.02
4.4.90.0020.01012.02
4.4.80.0020.01012.02
4.4.70.0040.00812.02
4.4.60.0050.00712.02
4.4.50.0030.00812.02
4.4.40.0050.02312.02
4.4.30.0070.01212.02
4.4.20.0030.01512.02
4.4.10.0070.01812.02
4.4.00.0030.02512.02
4.3.110.0050.01512.02
4.3.100.0050.01212.02
4.3.90.0050.01712.02
4.3.80.0050.02212.02
4.3.70.0070.01312.02
4.3.60.0050.01812.02
4.3.50.0100.01212.02
4.3.40.0030.02312.02
4.3.30.0060.01512.02
4.3.20.0030.01912.02
4.3.10.0020.01812.02
4.3.00.0050.01812.02

preferences:
41.31 ms | 400 KiB | 5 Q