3v4l.org

run code in 300+ PHP versions simultaneously
<?php $desc1 = "foo"; echo $description = (isset($desc1) ? $desc1 : '') . (isset($desc2) ? $desc2 : '');

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)
8.5.10.0130.00416.59
8.5.00.0160.00519.58
8.4.150.0020.00014.05
8.4.140.0150.00717.61
8.4.130.0090.01018.79
8.4.120.0100.00923.91
8.4.110.0120.00722.38
8.4.100.0120.00917.78
8.4.90.0080.00117.84
8.4.80.0120.00817.75
8.4.70.0090.00217.63
8.4.60.0130.00718.79
8.4.50.0040.00517.50
8.4.40.0120.01019.36
8.4.30.0090.00617.50
8.4.20.0160.00417.54
8.4.10.0030.00917.45
8.3.280.0130.00918.31
8.3.270.0140.00516.69
8.3.260.0090.01016.53
8.3.250.0080.01118.78
8.3.240.0090.01019.08
8.3.230.0100.00916.64
8.3.220.0110.00717.17
8.3.210.0070.00616.66
8.3.200.0040.00418.31
8.3.190.0070.01017.15
8.3.180.0090.00916.85
8.3.170.0130.00717.12
8.3.160.0120.00616.60
8.3.150.0090.00919.13
8.3.140.0140.00416.52
8.3.130.0160.00316.29
8.3.120.0110.00718.98
8.3.110.0030.00720.94
8.3.100.0100.01024.06
8.3.90.0080.00026.77
8.3.80.0040.00418.31
8.3.70.0090.00916.37
8.3.60.0140.00318.56
8.3.50.0070.01317.27
8.3.40.0120.00318.59
8.3.30.0110.00418.59
8.3.20.0110.00720.20
8.3.10.0080.00023.48
8.3.00.0050.00319.56
8.2.290.0130.00620.50
8.2.280.0050.00318.46
8.2.270.0080.01116.53
8.2.260.0150.00018.69
8.2.250.0030.00518.23
8.2.240.0090.00618.85
8.2.230.0000.00722.58
8.2.220.0060.00337.54
8.2.210.0100.00326.77
8.2.200.0060.00316.50
8.2.190.0100.01016.58
8.2.180.0000.01516.50
8.2.170.0100.00722.96
8.2.160.0070.00719.41
8.2.150.0070.00724.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0050.00321.04
8.2.110.0090.00019.24
8.2.100.0040.00818.03
8.2.90.0080.00018.16
8.2.80.0070.00018.16
8.2.70.0040.00417.80
8.2.60.0000.00817.93
8.2.50.0000.00918.10
8.2.40.0000.00722.32
8.2.30.0000.00719.29
8.2.20.0000.00718.05
8.2.10.0040.00417.90
8.2.00.0060.00318.09
8.1.330.0070.00418.27
8.1.320.0130.00716.15
8.1.310.0070.00016.63
8.1.300.0060.00318.55
8.1.290.0040.00430.84
8.1.280.0060.01225.92
8.1.270.0080.00022.07
8.1.260.0000.00826.35
8.1.250.0000.00828.09
8.1.240.0090.00022.20
8.1.230.0090.00322.52
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0060.00317.23
8.1.190.0040.00417.23
8.1.180.0060.00318.10
8.1.170.0040.00420.29
8.1.160.0040.00419.05
8.1.150.0070.00018.88
8.1.140.0000.00719.60
8.1.130.0030.00318.86
8.1.120.0030.00317.43
8.1.110.0040.00417.48
8.1.100.0040.00417.43
8.1.90.0040.00417.49
8.1.80.0070.00317.43
8.1.70.0030.00317.46
8.1.60.0030.00617.46
8.1.50.0000.00717.51
8.1.40.0080.00017.32
8.1.30.0040.00417.62
8.1.20.0050.00317.63
8.1.10.0030.00517.46
8.1.00.0000.00817.43
8.0.300.0050.00219.52
8.0.290.0050.00316.75
8.0.280.0030.00318.39
8.0.270.0030.00517.24
8.0.260.0030.00518.86
8.0.250.0040.00416.84
8.0.240.0040.00416.93
8.0.230.0000.00716.98
8.0.220.0000.00716.79
8.0.210.0030.00316.91
8.0.200.0030.00316.95
8.0.190.0030.00616.83
8.0.180.0040.00416.90
8.0.170.0040.00416.89
8.0.160.0030.00316.91
8.0.150.0040.00716.81
8.0.140.0030.00516.74
8.0.130.0030.00313.32
8.0.120.0070.00016.86
8.0.110.0000.00816.81
8.0.100.0030.00516.87
8.0.90.0000.00716.90
8.0.80.0060.00916.89
8.0.70.0070.00016.89
8.0.60.0030.00516.68
8.0.50.0000.00716.77
8.0.30.0060.01317.02
8.0.20.0130.00917.40
8.0.10.0030.00516.88
8.0.00.0080.00816.79
7.4.330.0000.00515.55
7.4.320.0030.00316.53
7.4.300.0060.00016.52
7.4.290.0000.00716.48
7.4.280.0040.00416.58
7.4.270.0030.00316.56
7.4.260.0030.00316.60
7.4.250.0080.00016.50
7.4.240.0000.00816.49
7.4.230.0030.00316.54
7.4.220.0160.00316.45
7.4.210.0160.00316.37
7.4.200.0000.00716.62
7.4.160.0050.01516.31
7.4.150.0030.02217.40
7.4.140.0080.00917.86
7.4.130.0190.00316.55
7.4.120.0090.01216.44
7.4.110.0040.01516.35
7.4.100.0030.01416.32
7.4.90.0110.00716.43
7.4.80.0120.00619.39
7.4.70.0120.00316.34
7.4.60.0040.01516.40
7.4.50.0060.00816.22
7.4.40.0090.01116.29
7.4.30.0110.01216.43
7.4.00.0100.00714.98
7.3.330.0000.00713.02
7.3.320.0000.00512.92
7.3.310.0000.00716.24
7.3.300.0030.00316.20
7.3.290.0070.01016.16
7.3.280.0080.00916.19
7.3.270.0130.01317.40
7.3.260.0070.00916.32
7.3.250.0080.01016.37
7.3.240.0060.01016.37
7.3.230.0110.01116.52
7.3.210.0070.01016.07
7.3.200.0070.01716.36
7.3.190.0060.01016.14
7.3.180.0120.00416.42
7.3.170.0140.00316.25
7.3.160.0110.00416.50
7.3.10.0070.00716.56
7.3.00.0030.00716.46
7.2.330.0130.00816.45
7.2.320.0100.00716.67
7.2.310.0120.00916.59
7.2.300.0130.00316.56
7.2.290.0080.01216.66
7.2.130.0000.01216.86
7.2.120.0070.00416.70
7.2.110.0080.00516.66
7.2.100.0080.00616.77
7.2.90.0090.00916.77
7.2.80.0030.00816.83
7.2.70.0050.01216.83
7.2.60.0080.00616.87
7.2.50.0030.00816.83
7.2.40.0050.00816.86
7.2.30.0060.00516.68
7.2.20.0060.00816.77
7.2.10.0080.00516.69
7.2.00.0050.00716.92
7.1.250.0050.00815.63
7.1.240.0060.00315.41
7.1.230.0000.01515.86
7.1.220.0080.00515.81
7.1.210.0040.00715.23
7.1.200.0050.00715.72
7.1.190.0040.01415.70
7.1.180.0060.00615.54
7.1.170.0050.00515.58
7.1.160.0000.01015.78
7.1.150.0000.00915.34
7.1.140.0090.00015.50
7.1.130.0070.00715.54
7.1.120.0070.00715.59
7.1.110.0110.00315.84
7.1.100.0030.01015.52
7.1.90.0060.00615.75
7.1.80.0030.00715.65
7.1.70.0050.00616.24
7.1.60.0090.00416.37
7.1.50.0140.00516.20
7.1.40.0050.00516.09
7.1.30.0070.00416.04
7.1.20.0110.00216.21
7.1.10.0110.00415.95
7.1.00.0030.00716.03
7.0.330.0050.00515.42
7.0.320.0000.01215.19
7.0.310.0120.00315.27
7.0.300.0110.00015.20
7.0.290.0000.01315.02
7.0.280.0180.00015.06
7.0.270.0070.01115.51
7.0.260.0050.00315.14
7.0.250.0060.01015.38
7.0.240.0040.00415.53
7.0.230.0060.00615.21
7.0.220.0070.00715.41
7.0.210.0000.01114.87
7.0.200.0020.01115.87
7.0.190.0070.00315.73
7.0.180.0000.00915.61
7.0.170.0040.00515.77
7.0.160.0050.00615.69
7.0.150.0020.00915.64
7.0.140.0070.00615.64
7.0.130.0060.00515.65
7.0.120.0090.00215.90
7.0.110.0070.00515.85
7.0.100.0050.00915.86
7.0.90.0030.00815.69
7.0.80.0030.00915.76
7.0.70.0050.00515.77
7.0.60.0020.01015.67
7.0.50.0060.00515.90
7.0.40.0050.00514.04
7.0.30.0030.00914.17
7.0.20.0040.00914.08
7.0.10.0120.00013.96
7.0.00.0060.00214.02
5.6.380.0100.00314.43
5.6.370.0110.00414.23
5.6.360.0000.00914.29
5.6.350.0100.00714.38
5.6.340.0030.00614.20
5.6.330.0070.00314.25
5.6.320.0070.00714.51
5.6.310.0070.00414.26
5.6.300.0040.02517.40
5.6.290.0050.02717.49
5.6.280.0090.02217.69
5.6.270.0090.02417.45
5.6.260.0090.02417.63
5.6.250.0090.02417.57
5.6.240.0000.03117.41
5.6.230.0030.03117.51
5.6.220.0090.02517.45
5.6.210.0030.02517.55
5.6.200.0080.02417.60
5.6.190.0100.02017.47
5.6.180.0050.02617.56
5.6.170.0030.03017.62
5.6.160.0110.01917.53
5.6.150.0050.02717.41
5.6.140.0040.02617.59
5.6.130.0060.02617.54
5.6.120.0060.02417.87
5.6.110.0030.02917.53
5.6.100.0020.02917.50
5.6.90.0050.04117.61
5.6.80.0030.02717.23
5.6.70.0080.01917.32
5.6.60.0030.02917.19
5.6.50.0030.03117.29
5.6.40.0050.02917.19
5.6.30.0050.02317.12
5.6.20.0080.02917.15
5.6.10.0030.02317.23
5.6.00.0060.02017.13
5.5.380.0020.02514.38
5.5.370.0070.02014.21
5.5.360.0060.02214.11
5.5.350.0040.02513.99
5.5.340.0070.01914.53
5.5.330.0010.02814.50
5.5.320.0030.02514.59
5.5.310.0030.02514.59
5.5.300.0060.02214.42
5.5.290.0050.02514.63
5.5.280.0020.02714.47
5.5.270.0090.01914.55
5.5.260.0030.02714.56
5.5.250.0030.02514.29
5.5.240.0020.02414.13
5.5.230.0030.02114.12
5.5.220.0050.02014.15
5.5.210.0070.02514.27
5.5.200.0030.02214.14
5.5.190.0030.02213.98
5.5.180.0030.02714.01
5.5.170.0000.00610.90
5.5.160.0020.02214.27
5.5.150.0020.02513.97
5.5.140.0070.02014.13
5.5.130.0050.01914.16
5.5.120.0010.02214.29
5.5.110.0000.02513.98
5.5.100.0000.03414.15
5.5.90.0020.02514.08
5.5.80.0100.02614.08
5.5.70.0030.02213.97
5.5.60.0030.02213.98
5.5.50.0020.02613.96
5.5.40.0080.02914.06
5.5.30.0040.01914.09
5.5.20.0020.02614.04
5.5.10.0050.02514.09
5.5.00.0040.02013.99
5.4.450.0000.02915.15
5.4.440.0020.02515.24
5.4.430.0010.02515.19
5.4.420.0060.02115.24
5.4.410.0070.01815.04
5.4.400.0020.02515.10
5.4.390.0000.02414.87
5.4.380.0030.02214.95
5.4.370.0040.02314.95
5.4.360.0030.02414.89
5.4.350.0030.02914.87
5.4.340.0050.01814.73
5.4.330.0030.00310.79
5.4.320.0030.02614.84
5.4.310.0050.02614.86
5.4.300.0170.02414.95
5.4.290.0070.02015.00
5.4.280.0020.02314.88
5.4.270.0030.02314.77
5.4.260.0050.01914.84
5.4.250.0030.02014.88
5.4.240.0000.02514.80
5.4.230.0070.02014.87
5.4.220.0020.02214.78
5.4.210.0030.02214.79
5.4.200.0030.02014.88
5.4.190.0090.01514.59
5.4.180.0040.01914.77
5.4.170.0020.02214.64
5.4.160.0030.02014.79
5.4.150.0030.02314.77
5.4.140.0020.02213.87
5.4.130.0020.04113.60
5.4.120.0100.01413.64
5.4.110.0030.02913.71
5.4.100.0080.01913.71
5.4.90.0030.02113.63
5.4.80.0030.02013.69
5.4.70.0060.01813.44
5.4.60.0040.02013.74
5.4.50.0000.02213.61
5.4.40.0060.03613.66
5.4.30.0060.02013.85
5.4.20.0000.03013.68
5.4.10.0020.02913.65
5.4.00.0060.03613.31
5.3.290.0040.02112.66
5.3.280.0030.02312.50
5.3.270.0030.02112.67
5.3.260.0050.02012.57
5.3.250.0050.01912.54
5.3.240.0060.02912.45
5.3.230.0030.03012.60
5.3.220.0050.03912.53
5.3.210.0050.03012.46
5.3.200.0020.02312.54
5.3.190.0050.01912.57
5.3.180.0050.02712.60
5.3.170.0050.01812.59
5.3.160.0020.03612.57
5.3.150.0020.03112.54
5.3.140.0050.02312.48
5.3.130.0030.02212.59
5.3.120.0030.02012.58
5.3.110.0070.02212.62
5.3.100.0010.03212.60
5.3.90.0050.01912.63
5.3.80.0050.02212.53
5.3.70.0050.02812.50
5.3.60.0020.02012.56
5.3.50.0020.02512.40
5.3.40.0020.02112.40
5.3.30.0000.03212.61
5.3.20.0050.01812.43
5.3.10.0000.02612.37
5.3.00.0020.02212.42
5.2.170.0020.01612.37
5.2.160.0010.02812.37
5.2.150.0030.03112.37
5.2.140.0010.03612.37
5.2.130.0050.01312.37
5.2.120.0020.01912.37
5.2.110.0070.01312.37
5.2.100.0020.01812.37
5.2.90.0020.01912.37
5.2.80.0030.01512.37
5.2.70.0030.01812.37
5.2.60.0000.01812.37
5.2.50.0010.01812.37
5.2.40.0000.01812.37
5.2.30.0030.01412.37
5.2.20.0030.01612.37
5.2.10.0000.01912.37
5.2.00.0020.02012.37
5.1.60.0000.01612.37
5.1.50.0050.01312.37
5.1.40.0030.03012.37
5.1.30.0060.01312.37
5.1.20.0030.03412.37
5.1.10.0030.01412.37
5.1.00.0030.01512.37
5.0.50.0070.00812.37
5.0.40.0010.01312.37
5.0.30.0000.02112.37
5.0.20.0000.01412.37
5.0.10.0010.01312.37
5.0.00.0020.01712.37
4.4.90.0000.01112.37
4.4.80.0000.01012.37
4.4.70.0010.00912.37
4.4.60.0000.01212.37
4.4.50.0020.01612.37
4.4.40.0020.01212.37
4.4.30.0090.00712.37
4.4.20.0000.01112.37
4.4.10.0020.00912.37
4.4.00.0000.01912.37
4.3.110.0030.00912.37
4.3.100.0020.00812.37
4.3.90.0020.00912.37
4.3.80.0020.01512.37
4.3.70.0020.00912.37
4.3.60.0000.01012.37
4.3.50.0040.00912.37
4.3.40.0000.01512.37
4.3.30.0020.00912.37
4.3.20.0060.00512.37
4.3.10.0000.01112.37
4.3.00.0000.01212.37

preferences:
39.41 ms | 403 KiB | 5 Q