3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array('t1'=> NULL); var_dump($test); var_dump($test['t1']); var_dump(isset($test['t1']));

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)
8.3.60.0100.01018.14
8.3.50.0230.00821.83
8.3.40.0150.00018.44
8.3.30.0090.00618.91
8.3.20.0080.00020.12
8.3.10.0000.00723.48
8.3.00.0000.00820.63
8.2.180.0070.00716.63
8.2.170.0100.01022.96
8.2.160.0150.00622.28
8.2.150.0050.00324.18
8.2.140.0040.01524.66
8.2.130.0000.00826.16
8.2.120.0040.00717.50
8.2.110.0040.00422.16
8.2.100.0080.00417.84
8.2.90.0060.00319.11
8.2.80.0000.00817.97
8.2.70.0030.00917.50
8.2.60.0040.00417.79
8.2.50.0060.00318.07
8.2.40.0040.00818.09
8.2.30.0060.00618.05
8.2.20.0050.00217.53
8.2.10.0000.00717.51
8.2.00.0070.00017.61
8.1.280.0140.00425.92
8.1.270.0070.00023.88
8.1.260.0000.00726.35
8.1.250.0060.00328.09
8.1.240.0030.00623.79
8.1.230.0040.00719.01
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0090.00017.23
8.1.190.0050.00317.41
8.1.180.0030.00618.10
8.1.170.0030.00618.66
8.1.160.0000.00721.94
8.1.150.0000.00818.57
8.1.140.0050.00317.43
8.1.130.0030.00317.81
8.1.120.0070.00017.28
8.1.110.0000.00817.42
8.1.100.0080.00017.46
8.1.90.0060.00317.37
8.1.80.0000.00717.28
8.1.70.0030.00317.27
8.1.60.0030.00617.56
8.1.50.0030.00617.52
8.1.40.0030.00617.33
8.1.30.0040.00417.58
8.1.20.0040.00417.48
8.1.10.0040.00417.36
8.1.00.0000.00917.49
8.0.300.0030.00318.77
8.0.290.0030.00317.05
8.0.280.0000.00718.32
8.0.270.0040.00416.82
8.0.260.0030.00316.77
8.0.250.0060.00016.95
8.0.240.0000.00716.75
8.0.230.0000.00716.76
8.0.220.0030.00516.88
8.0.210.0000.00716.71
8.0.200.0030.00616.89
8.0.190.0070.00016.75
8.0.180.0040.00416.80
8.0.170.0040.00416.76
8.0.160.0040.00416.70
8.0.150.0060.00316.73
8.0.140.0040.00416.69
8.0.130.0030.00313.20
8.0.120.0070.00016.79
8.0.110.0030.00616.77
8.0.100.0030.00516.88
8.0.90.0000.00716.67
8.0.80.0030.01216.84
8.0.70.0020.00516.82
8.0.60.0000.00716.80
8.0.50.0000.00816.86
8.0.30.0110.00816.89
8.0.20.0100.00817.40
8.0.10.0030.00516.83
8.0.00.0030.01516.69
7.4.330.0000.00615.03
7.4.320.0000.00716.42
7.4.300.0000.00616.46
7.4.290.0040.00416.53
7.4.280.0070.00016.43
7.4.270.0000.00716.50
7.4.260.0030.00316.48
7.4.250.0040.00416.25
7.4.240.0010.00616.49
7.4.230.0030.00316.64
7.4.220.0120.00916.50
7.4.210.0100.00416.46
7.4.200.0080.00016.32
7.4.190.0070.00016.69
7.4.160.0050.01116.26
7.4.150.0120.00617.40
7.4.140.0140.00717.86
7.4.130.0060.01216.44
7.4.120.0060.01416.32
7.4.110.0040.01416.33
7.4.100.0100.00716.55
7.4.90.0170.00616.31
7.4.80.0140.00716.53
7.4.70.0060.00916.47
7.4.60.0070.01016.41
7.4.50.0030.00616.24
7.4.40.0070.00722.77
7.4.30.0110.00516.41
7.4.10.0060.01215.31
7.4.00.0070.01215.10
7.3.330.0050.00013.14
7.3.320.0030.00313.00
7.3.310.0000.00716.13
7.3.300.0000.00716.27
7.3.290.0070.00716.20
7.3.280.0080.01016.23
7.3.270.0040.01217.40
7.3.260.0100.00716.29
7.3.250.0090.00916.36
7.3.240.0140.01016.28
7.3.230.0130.00316.39
7.3.210.0120.00816.35
7.3.200.0070.01719.39
7.3.190.0100.00616.32
7.3.180.0060.01516.50
7.3.170.0060.00916.27
7.3.160.0080.00816.28
7.3.130.0060.01315.15
7.3.120.0070.01215.14
7.3.110.0070.01115.13
7.3.100.0070.00715.15
7.3.90.0050.00815.23
7.3.80.0070.00415.12
7.3.70.0030.01015.19
7.3.60.0050.00815.03
7.3.50.0060.00915.12
7.3.40.0010.01115.15
7.3.30.0060.00515.06
7.3.20.0070.00716.56
7.3.10.0070.00816.66
7.3.00.0050.01016.64
7.2.330.0100.00716.61
7.2.320.0060.01316.68
7.2.310.0070.01016.35
7.2.300.0130.00316.36
7.2.290.0120.00416.55
7.2.260.0090.00915.32
7.2.250.0050.01315.22
7.2.240.0090.00815.27
7.2.230.0080.00815.24
7.2.220.0050.01115.34
7.2.210.0080.00615.32
7.2.200.0030.01015.15
7.2.190.0100.00715.24
7.2.180.0040.00915.40
7.2.170.0070.00815.32
7.2.160.0050.00515.35
7.2.150.0040.00916.64
7.2.140.0080.00616.85
7.2.130.0050.01116.71
7.2.120.0070.00616.77
7.2.110.0040.00716.70
7.2.100.0060.00916.83
7.2.90.0080.00516.92
7.2.80.0060.00716.76
7.2.70.0060.00916.86
7.2.60.0090.00916.76
7.2.50.0040.00916.72
7.2.40.0090.00516.78
7.2.30.0050.01116.86
7.2.20.0020.01016.73
7.2.10.0080.00716.86
7.2.00.0080.00717.50
7.1.330.0080.00615.80
7.1.320.0060.00815.88
7.1.310.0080.00515.87
7.1.300.0080.00715.88
7.1.290.0050.00715.70
7.1.280.0040.00915.79
7.1.270.0030.01115.90
7.1.260.0050.00915.89
7.1.250.0070.00715.80
7.1.240.0060.00615.92
7.1.230.0050.00615.76
7.1.220.0060.00815.74
7.1.210.0050.00815.85
7.1.200.0040.00715.90
7.1.190.0070.00815.85
7.1.180.0080.00615.89
7.1.170.0050.00615.93
7.1.160.0020.01115.88
7.1.150.0040.01015.86
7.1.140.0040.00615.88
7.1.130.0030.00815.84
7.1.120.0050.00915.65
7.1.110.0110.00215.80
7.1.100.0050.00716.39
7.1.90.0070.00415.91
7.1.80.0060.00615.82
7.1.70.0090.00716.00
7.1.60.0060.01016.71
7.1.50.0080.00516.16
7.1.40.0020.01015.71
7.1.30.0080.00815.80
7.1.20.0050.00915.78
7.1.10.0030.00915.74
7.1.00.0050.02417.49
7.0.330.0060.00815.52
7.0.320.0020.00815.56
7.0.310.0040.00715.47
7.0.300.0020.00715.48
7.0.290.0060.00815.56
7.0.280.0020.00915.51
7.0.270.0050.00515.62
7.0.260.0090.00615.60
7.0.250.0090.00215.65
7.0.240.0060.00715.53
7.0.230.0070.00715.54
7.0.220.0070.00715.42
7.0.210.0030.00715.65
7.0.200.0050.00815.90
7.0.190.0070.00515.58
7.0.180.0050.00815.40
7.0.170.0080.00615.56
7.0.160.0060.00915.55
7.0.150.0050.00915.50
7.0.140.0040.02317.12
7.0.130.0050.00915.60
7.0.120.0040.01015.56
7.0.110.0060.00515.45
7.0.100.0140.02516.60
7.0.90.0160.01716.66
7.0.80.0120.02616.72
7.0.70.0120.02116.70
7.0.60.0120.01616.58
7.0.50.0140.02616.80
7.0.40.0040.02615.65
7.0.30.0070.02315.76
7.0.20.0070.02415.70
7.0.10.0060.02415.71
7.0.00.0060.02715.78
5.6.400.0050.00614.93
5.6.390.0080.00614.78
5.6.380.0030.01114.90
5.6.370.0060.00614.79
5.6.360.0100.00214.96
5.6.350.0060.00714.91
5.6.340.0080.00714.87
5.6.330.0030.00914.77
5.6.320.0020.01114.87
5.6.310.0010.01214.97
5.6.300.0060.00914.84
5.6.290.0050.00614.79
5.6.280.0060.02316.34
5.6.270.0050.01114.89
5.6.260.0050.00814.89
5.6.250.0080.02116.34
5.6.240.0070.02616.32
5.6.230.0050.02516.34
5.6.220.0060.02616.41
5.6.210.0060.01816.37
5.6.200.0070.02316.49
5.6.190.0030.02316.30
5.6.180.0080.02316.42
5.6.170.0050.02316.32
5.6.160.0030.02116.32
5.6.150.0030.01916.39
5.6.140.0060.02416.45
5.6.130.0070.01616.35
5.6.120.0070.02716.38
5.6.110.0050.02716.42
5.6.100.0090.02216.32
5.6.90.0070.01716.44
5.6.80.0070.02416.25
5.6.70.0040.02116.34
5.6.60.0070.02516.19
5.6.50.0110.02216.17
5.6.40.0080.02616.21
5.6.30.0050.02616.28
5.6.20.0080.02416.16
5.6.10.0050.02816.17
5.6.00.0080.02216.23
5.5.380.0060.01816.29
5.5.370.0070.02416.22
5.5.360.0030.02516.14
5.5.350.0020.02316.17
5.5.340.0040.02916.31
5.5.330.0100.01716.39
5.5.320.0060.01516.30
5.5.310.0040.02616.34
5.5.300.0070.01616.28
5.5.290.0060.02816.33
5.5.280.0030.02616.23
5.5.270.0030.02816.32
5.5.260.0070.02516.33
5.5.250.0040.02616.18
5.5.240.0070.01716.10
5.5.230.0070.02516.17
5.5.220.0080.02416.15
5.5.210.0100.02316.09
5.5.200.0060.02016.17
5.5.190.0060.01816.05
5.5.180.0050.02516.10
5.5.170.0070.00814.86
5.5.160.0100.02016.13
5.5.150.0060.02515.93
5.5.140.0070.02516.18
5.5.130.0060.02316.22
5.5.120.0070.02516.22
5.5.110.0050.02616.18
5.5.100.0050.02616.15
5.5.90.0060.02616.14
5.5.80.0070.02516.11
5.5.70.0040.02716.05
5.5.60.0050.01816.11
5.5.50.0040.02616.04
5.5.40.0070.01516.06
5.5.30.0030.02916.07
5.5.20.0070.02216.10
5.5.10.0070.02615.96
5.5.00.0080.02016.14
5.4.450.0030.02814.70
5.4.440.0070.02214.68
5.4.430.0040.02614.68
5.4.420.0060.02414.72
5.4.410.0020.02414.63
5.4.400.0020.01714.64
5.4.390.0060.02214.57
5.4.380.0040.02514.57
5.4.370.0010.02614.64
5.4.360.0050.02414.57
5.4.350.0030.02314.55
5.4.340.0020.02214.63
5.4.330.0060.00613.11
5.4.320.0050.02114.62
5.4.310.0050.02014.61
5.4.300.0060.02214.59
5.4.290.0070.02014.61
5.4.280.0050.01714.64
5.4.270.0020.02414.69
5.4.260.0050.02214.60
5.4.250.0020.02714.57
5.4.240.0050.02414.61
5.4.230.0040.02514.58
5.4.220.0040.02514.57
5.4.210.0050.01314.53
5.4.200.0040.02414.59
5.4.190.0040.01714.59
5.4.180.0040.02614.60
5.4.170.0040.02314.55
5.4.160.0030.01514.65
5.4.150.0060.02214.64
5.4.140.0050.01913.91
5.4.130.0050.02213.90
5.4.120.0080.02013.90
5.4.110.0030.02513.94
5.4.100.0070.02113.88
5.4.90.0050.01413.94
5.4.80.0040.02313.97
5.4.70.0030.02413.88
5.4.60.0050.01813.90
5.4.50.0040.02313.90
5.4.40.0040.02413.92
5.4.30.0050.02013.93
5.4.20.0020.02013.90
5.4.10.0030.02513.90
5.4.00.0060.02013.76
5.3.290.0030.02513.49
5.3.280.0040.02313.47
5.3.270.0030.01813.48
5.3.260.0030.01413.47
5.3.250.0010.02613.48
5.3.240.0040.02113.43
5.3.230.0050.02313.46
5.3.220.0060.01813.45
5.3.210.0080.02113.46
5.3.200.0060.02113.47
5.3.190.0070.01813.46
5.3.180.0040.02513.45
5.3.170.0010.01913.44
5.3.160.0060.02013.45
5.3.150.0030.02413.47
5.3.140.0050.01913.46
5.3.130.0080.02113.46
5.3.120.0060.01913.42
5.3.110.0050.02213.46
5.3.100.0030.02113.30
5.3.90.0040.01613.33
5.3.80.0030.01513.30
5.3.70.0040.02113.30
5.3.60.0040.02313.32
5.3.50.0080.01313.30
5.3.40.0020.02413.31
5.3.30.0040.01813.28
5.3.20.0030.02113.25
5.3.10.0040.02113.24
5.3.00.0030.01413.23
5.2.170.0070.05710.96
5.2.160.0030.06011.14
5.2.150.0030.06311.18
5.2.140.0070.06011.00
5.2.130.0030.03011.05
5.2.120.0000.05711.09
5.2.110.0070.03311.17
5.2.100.0000.06310.95
5.2.90.0030.05311.02
5.2.80.0100.05310.95
5.2.70.0070.04711.01
5.2.60.0000.06310.85
5.2.50.0100.05710.81
5.2.40.0000.05010.98
5.2.30.0030.05710.99
5.2.20.0000.05710.84
5.2.10.0100.04710.89
5.2.00.0070.05310.77
5.1.60.0070.0509.87
5.1.50.0030.0539.98
5.1.40.0030.05310.00
5.1.30.0070.05710.23
5.1.20.0030.06310.41
5.1.10.0070.03710.09
5.1.00.0030.05710.11
5.0.50.0100.0438.62
5.0.40.0030.0378.25
5.0.30.0030.0608.25
5.0.20.0030.0438.21
5.0.10.0000.0338.21
5.0.00.0000.0578.21
4.4.90.0030.0438.21
4.4.80.0030.0378.21
4.4.70.0000.0378.21
4.4.60.0000.0378.21
4.4.50.0030.0338.21
4.4.40.0000.0538.21
4.4.30.0070.0278.21
4.4.20.0000.0308.21
4.4.10.0000.0378.21
4.4.00.0070.0508.21
4.3.110.0070.0308.21
4.3.100.0000.0408.21
4.3.90.0000.0278.21
4.3.80.0030.0508.21
4.3.70.0000.0378.21
4.3.60.0000.0378.21
4.3.50.0000.0378.21
4.3.40.0000.0538.21
4.3.30.0000.0378.21
4.3.20.0030.0378.21
4.3.10.0030.0338.21
4.3.00.0030.0338.21

preferences:
46.61 ms | 401 KiB | 5 Q