3v4l.org

run code in 300+ PHP versions simultaneously
<?php function Test($xxx = null) { if(isset($xxx)) { echo 'is set<br>'; } else echo 'not set<br>'; } Test(); Test('abcd');

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)
8.3.60.0210.00018.28
8.3.50.0100.00621.27
8.3.40.0110.00718.46
8.3.30.0120.00318.79
8.3.20.0060.00320.27
8.3.10.0050.00322.09
8.3.00.0080.00022.52
8.2.180.0090.00616.32
8.2.170.0060.00922.96
8.2.160.0000.01719.16
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0100.01026.16
8.2.120.0040.00419.36
8.2.110.0060.00322.14
8.2.100.0040.00719.51
8.2.90.0040.00419.28
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0040.00817.55
8.2.50.0030.00618.07
8.2.40.0050.00518.03
8.2.30.0070.00017.92
8.2.20.0040.00417.45
8.2.10.0040.00417.55
8.2.00.0040.00417.60
8.1.280.0110.00425.92
8.1.270.0040.00422.14
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.75
8.1.230.0080.00419.12
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0130.00017.11
8.1.190.0040.00417.41
8.1.180.0080.00018.48
8.1.170.0000.00818.51
8.1.160.0000.00722.09
8.1.150.0000.00718.55
8.1.140.0040.00417.22
8.1.130.0000.00717.69
8.1.120.0040.00417.25
8.1.110.0030.00517.37
8.1.100.0070.00017.32
8.1.90.0030.00317.20
8.1.80.0040.00417.28
8.1.70.0070.00017.21
8.1.60.0040.00417.52
8.1.50.0060.00317.46
8.1.40.0040.00417.36
8.1.30.0080.00017.51
8.1.20.0000.00817.64
8.1.10.0050.00317.43
8.1.00.0000.00717.37
8.0.300.0000.00718.77
8.0.290.0070.00017.05
8.0.280.0030.00318.36
8.0.270.0040.00417.19
8.0.260.0030.00316.75
8.0.250.0030.00316.79
8.0.240.0000.00716.84
8.0.230.0030.00516.85
8.0.220.0030.00316.79
8.0.210.0030.00316.64
8.0.200.0040.00416.86
8.0.190.0090.00016.79
8.0.180.0070.00016.68
8.0.170.0000.00716.78
8.0.160.0040.00416.84
8.0.150.0000.00716.63
8.0.140.0040.00416.70
8.0.130.0000.00513.14
8.0.120.0000.00716.59
8.0.110.0080.00016.62
8.0.100.0030.00316.61
8.0.90.0050.00316.70
8.0.80.0170.00316.64
8.0.70.0040.00416.57
8.0.60.0000.00816.65
8.0.50.0000.00716.75
8.0.30.0150.00417.06
8.0.20.0070.01317.40
8.0.10.0080.00016.84
8.0.00.0100.01016.71
7.4.330.0000.00615.00
7.4.320.0030.00316.37
7.4.300.0030.00316.54
7.4.290.0040.00416.43
7.4.280.0030.00316.48
7.4.270.0040.00416.41
7.4.260.0080.00016.52
7.4.250.0020.00516.46
7.4.240.0040.00316.44
7.4.230.0000.00716.37
7.4.220.0090.00616.38
7.4.210.0050.00816.49
7.4.200.0030.00316.59
7.4.190.0030.00316.46
7.4.160.0090.00616.37
7.4.150.0100.00717.40
7.4.140.0130.00517.86
7.4.130.0110.00616.45
7.4.120.0090.00816.43
7.4.110.0120.00616.37
7.4.100.0070.01016.41
7.4.90.0100.01016.29
7.4.80.0100.01019.39
7.4.70.0080.01416.43
7.4.60.0050.01116.48
7.4.50.0060.00316.51
7.4.40.0030.00922.77
7.4.30.0070.01516.32
7.4.10.0030.01715.00
7.4.00.0080.00615.02
7.3.330.0030.00213.09
7.3.320.0030.00313.04
7.3.310.0070.00016.05
7.3.300.0070.00016.10
7.3.290.0030.01116.22
7.3.280.0080.00616.20
7.3.270.0060.01117.40
7.3.260.0090.01016.37
7.3.250.0090.00916.26
7.3.240.0120.00616.41
7.3.230.0100.00716.39
7.3.210.0150.00016.31
7.3.200.0100.00719.39
7.3.190.0120.01016.52
7.3.180.0090.00616.34
7.3.170.0070.01016.27
7.3.160.0080.00816.55
7.3.130.0100.01014.73
7.3.120.0050.01014.66
7.3.110.0030.01414.76
7.3.100.0040.01114.61
7.3.90.0100.00714.82
7.3.80.0070.00414.94
7.3.70.0080.00414.51
7.3.60.0100.00314.70
7.3.50.0090.00614.41
7.3.40.0000.01714.79
7.3.30.0000.01314.64
7.3.20.0030.00916.72
7.3.10.0070.01116.49
7.3.00.0040.01016.51
7.2.330.0140.00316.66
7.2.320.0070.01016.47
7.2.310.0110.00716.50
7.2.300.0080.00816.63
7.2.290.0100.01016.48
7.2.260.0090.00914.66
7.2.250.0130.00715.02
7.2.240.0030.01014.85
7.2.230.0110.00714.68
7.2.220.0030.01014.77
7.2.210.0060.00314.75
7.2.200.0090.00014.90
7.2.190.0030.01214.72
7.2.180.0090.00914.73
7.2.170.0150.00314.99
7.2.160.0040.00415.11
7.2.150.0060.00616.79
7.2.140.0040.00816.70
7.2.130.0060.00916.60
7.2.120.0120.00416.64
7.2.110.0090.00816.67
7.2.100.0070.00716.58
7.2.90.0070.00916.49
7.2.80.0070.00916.59
7.2.70.0070.00616.68
7.2.60.0060.01116.55
7.2.50.0020.01016.50
7.2.40.0050.01016.57
7.2.30.0080.00616.51
7.2.20.0070.00816.58
7.2.10.0070.00816.46
7.2.00.0080.00917.19
7.1.330.0030.01015.38
7.1.320.0080.00415.39
7.1.310.0060.00915.70
7.1.300.0040.01115.80
7.1.290.0000.01615.39
7.1.280.0030.00715.48
7.1.270.0060.00615.66
7.1.260.0000.01715.67
7.1.250.0070.00715.50
7.1.240.0050.00315.75
7.1.230.0040.00715.69
7.1.220.0120.00015.77
7.1.210.0030.00615.57
7.1.200.0040.00715.64
7.1.190.0030.00915.76
7.1.180.0040.00715.77
7.1.170.0030.00715.65
7.1.160.0060.00915.80
7.1.150.0060.00315.78
7.1.140.0000.00915.52
7.1.130.0060.00915.52
7.1.120.0070.01015.35
7.1.110.0060.00315.61
7.1.100.0070.00716.85
7.1.90.0060.00915.64
7.1.80.0090.00915.62
7.1.70.0030.00716.38
7.1.60.0110.00917.73
7.1.50.0080.00816.32
7.1.40.0060.01215.43
7.1.30.0100.00715.66
7.1.20.0060.00915.56
7.1.10.0060.00915.75
7.1.00.0070.04218.93
7.0.330.0060.00615.20
7.0.320.0040.00815.41
7.0.310.0040.00715.04
7.0.300.0000.00815.34
7.0.290.0070.00715.05
7.0.280.0050.00315.38
7.0.270.0040.01215.39
7.0.260.0060.00615.34
7.0.250.0030.00915.49
7.0.240.0090.00915.36
7.0.230.0060.00915.29
7.0.220.0000.01115.40
7.0.210.0040.00815.42
7.0.200.0050.00716.08
7.0.190.0130.00315.49
7.0.180.0070.00315.27
7.0.170.0000.01015.31
7.0.160.0030.00915.43
7.0.150.0080.00015.43
7.0.140.0060.04018.57
7.0.130.0080.00315.13
7.0.120.0100.00315.17
7.0.110.0030.00715.45
7.0.100.0030.04517.75
7.0.90.0150.03217.67
7.0.80.0220.03717.63
7.0.70.0110.04017.64
7.0.60.0080.04317.63
7.0.50.0050.04917.65
7.0.40.0110.03016.76
7.0.30.0060.04216.63
7.0.20.0100.04516.61
7.0.10.0100.03716.68
7.0.00.0060.03916.82
5.6.400.0070.01114.25
5.6.390.0100.00614.25
5.6.380.0030.01014.34
5.6.370.0030.00914.44
5.6.360.0030.01014.65
5.6.350.0080.00414.29
5.6.340.0060.00614.08
5.6.330.0000.01413.91
5.6.320.0070.00714.48
5.6.310.0090.00614.11
5.6.300.0040.01214.39
5.6.290.0070.01014.45
5.6.280.0140.03217.75
5.6.270.0070.00714.26
5.6.260.0030.00914.20
5.6.250.0010.03317.60
5.6.240.0060.05617.57
5.6.230.0070.04517.48
5.6.220.0080.04017.42
5.6.210.0110.04117.52
5.6.200.0070.04017.60
5.6.190.0050.04317.78
5.6.180.0070.04017.58
5.6.170.0050.04717.60
5.6.160.0070.04517.76
5.6.150.0050.04117.56
5.6.140.0050.04017.62
5.6.130.0020.04517.66
5.6.120.0080.04317.61
5.6.110.0050.03617.57
5.6.100.0120.03017.76
5.6.90.0100.03817.60
5.6.80.0120.03717.36
5.6.70.0030.04717.24
5.6.60.0050.04117.44
5.6.50.0080.02017.27
5.6.40.0050.04017.39
5.6.30.0050.02517.16
5.6.20.0070.03717.32
5.6.10.0100.04017.17
5.6.00.0100.03517.33
5.5.380.0050.05017.17
5.5.370.0070.04417.43
5.5.360.0000.05117.39
5.5.350.0100.04117.34
5.5.340.0110.04117.55
5.5.330.0020.04717.57
5.5.320.0030.03817.47
5.5.310.0070.03917.50
5.5.300.0050.02917.43
5.5.290.0090.03917.37
5.5.280.0060.04317.46
5.5.270.0100.04217.53
5.5.260.0080.04617.51
5.5.250.0050.03017.40
5.5.240.0030.03017.02
5.5.230.0090.04417.09
5.5.220.0050.04217.13
5.5.210.0060.02317.19
5.5.200.0070.04017.13
5.5.190.0050.02317.03
5.5.180.0030.02617.16
5.5.170.0030.01014.30
5.5.160.0050.04217.06
5.5.150.0030.04017.11
5.5.140.0050.03517.18
5.5.130.0060.03617.14
5.5.120.0080.04117.05
5.5.110.0080.02517.11
5.5.100.0080.02617.21
5.5.90.0050.03817.05
5.5.80.0050.03917.17
5.5.70.0050.02217.16
5.5.60.0070.03516.98
5.5.50.0030.02317.03
5.5.40.0020.02517.03
5.5.30.0030.02317.02
5.5.20.0070.03217.03
5.5.10.0050.03617.19
5.5.00.0090.03716.94
5.4.450.0020.04015.89
5.4.440.0080.03515.88
5.4.430.0050.04515.90
5.4.420.0050.03815.74
5.4.410.0070.03615.77
5.4.400.0070.02215.63
5.4.390.0090.03815.76
5.4.380.0030.04315.59
5.4.370.0100.03215.72
5.4.360.0060.04015.76
5.4.350.0050.04315.75
5.4.340.0030.02515.77
5.4.330.0060.00312.31
5.4.320.0050.02515.68
5.4.310.0090.03515.77
5.4.300.0030.04315.71
5.4.290.0060.03315.72
5.4.280.0040.02715.69
5.4.270.0120.01815.73
5.4.260.0060.03815.69
5.4.250.0100.02815.63
5.4.240.0100.02015.61
5.4.230.0050.03915.67
5.4.220.0020.04515.67
5.4.210.0090.03715.67
5.4.200.0100.03715.71
5.4.190.0030.02515.72
5.4.180.0070.02215.68
5.4.170.0070.03715.72
5.4.160.0100.03815.71
5.4.150.0090.03315.66
5.4.140.0060.02614.39
5.4.130.0080.01814.37
5.4.120.0070.02214.40
5.4.110.0100.02814.40
5.4.100.0040.02614.42
5.4.90.0060.03514.41
5.4.80.0020.04214.39
5.4.70.0030.03414.31
5.4.60.0020.04314.40
5.4.50.0060.02814.35
5.4.40.0060.04014.39
5.4.30.0080.03514.34
5.4.20.0080.03214.30
5.4.10.0020.04514.41
5.4.00.0050.02514.09
5.3.290.0020.03913.45
5.3.280.0050.03813.45
5.3.270.0000.02513.45
5.3.260.0030.04313.52
5.3.250.0050.03013.52
5.3.240.0040.02613.52
5.3.230.0030.04413.42
5.3.220.0020.03713.45
5.3.210.0100.03813.47
5.3.200.0060.03313.47
5.3.190.0050.03813.48
5.3.180.0050.02313.44
5.3.170.0050.04013.44
5.3.160.0080.02713.48
5.3.150.0070.03513.44
5.3.140.0030.04413.50
5.3.130.0080.02813.42
5.3.120.0070.03813.41
5.3.110.0030.04013.45
5.3.100.0060.03913.21
5.3.90.0020.02613.20
5.3.80.0080.04013.10
5.3.70.0080.03613.22
5.3.60.0050.04013.12
5.3.50.0030.02413.18
5.3.40.0050.03613.13
5.3.30.0070.01813.11
5.3.20.0030.02313.01
5.3.10.0030.02313.02
5.3.00.0030.02013.03
5.2.170.0070.03311.16
5.2.160.0070.05711.11
5.2.150.0100.06011.25
5.2.140.0030.03011.22
5.2.130.0000.03311.11
5.2.120.0000.03011.11
5.2.110.0070.02711.11
5.2.100.0000.03011.14
5.2.90.0070.02311.11
5.2.80.0000.03011.11
5.2.70.0030.02711.11
5.2.60.0000.03011.11
5.2.50.0000.03011.11
5.2.40.0070.02011.11
5.2.30.0000.02711.11
5.2.20.0000.02711.11
5.2.10.0030.03011.11
5.2.00.0030.02711.11
5.1.60.0000.03311.11
5.1.50.0000.02311.11
5.1.40.0000.02011.11
5.1.30.0000.02311.11
5.1.20.0030.02011.11
5.1.10.0070.01711.11
5.1.00.0030.02311.11
5.0.50.0000.02011.11
5.0.40.0000.02011.11
5.0.30.0000.03011.11
5.0.20.0070.01311.11
5.0.10.0030.01711.11
5.0.00.0000.03011.11
4.4.90.0000.01711.11
4.4.80.0000.01311.11
4.4.70.0030.01311.11
4.4.60.0000.01711.11
4.4.50.0000.01711.11
4.4.40.0030.02011.11
4.4.30.0030.01011.11
4.4.20.0000.01711.11
4.4.10.0030.01711.11
4.4.00.0030.03311.11
4.3.110.0030.01311.11
4.3.100.0000.01711.11
4.3.90.0000.01711.11
4.3.80.0000.02011.11
4.3.70.0000.01311.11
4.3.60.0000.02311.11
4.3.50.0030.01311.11
4.3.40.0000.03311.11
4.3.30.0000.01711.11
4.3.20.0030.01311.11
4.3.10.0030.01311.11
4.3.00.0000.02011.11

preferences:
45.85 ms | 400 KiB | 5 Q