3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $b = 'bar'; echo $a . !print '' . $b;

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)
8.3.40.0120.00318.54
8.3.30.0100.00320.06
8.3.20.0040.00418.74
8.3.10.0000.00820.95
8.3.00.0000.00823.48
8.2.170.0070.00722.96
8.2.160.0090.00620.35
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0070.00019.76
8.2.110.0050.00522.12
8.2.100.0080.00317.59
8.2.90.0040.00419.28
8.2.80.0040.00419.28
8.2.70.0040.00417.63
8.2.60.0040.00418.03
8.2.50.0050.00318.07
8.2.40.0080.00018.28
8.2.30.0040.00419.42
8.2.20.0000.00717.58
8.2.10.0030.00617.65
8.2.00.0040.00417.61
8.1.270.0030.00523.99
8.1.260.0070.00026.35
8.1.250.0030.00728.09
8.1.240.0030.00622.53
8.1.230.0040.00821.04
8.1.220.0040.00418.77
8.1.210.0070.00018.99
8.1.200.0040.00417.23
8.1.190.0050.00317.39
8.1.180.0030.00518.10
8.1.170.0040.00418.51
8.1.160.0050.00518.88
8.1.150.0030.00518.47
8.1.140.0040.00417.25
8.1.130.0000.00717.77
8.1.120.0060.00317.39
8.1.110.0040.00417.36
8.1.100.0070.00017.41
8.1.90.0000.00817.46
8.1.80.0040.00417.34
8.1.70.0000.00717.25
8.1.60.0040.00417.43
8.1.50.0070.00017.47
8.1.40.0070.00017.45
8.1.30.0030.00517.50
8.1.20.0040.00417.50
8.1.10.0000.00717.56
8.1.00.0060.00317.39
8.0.300.0040.00419.98
8.0.290.0040.00417.16
8.0.280.0000.00718.29
8.0.270.0030.00317.29
8.0.260.0030.00316.72
8.0.250.0000.00716.88
8.0.240.0070.00016.85
8.0.230.0030.00316.84
8.0.220.0000.00716.82
8.0.210.0000.00916.92
8.0.200.0030.00316.87
8.0.190.0070.00016.86
8.0.180.0060.00316.81
8.0.170.0030.00516.75
8.0.160.0000.00716.93
8.0.150.0050.00316.69
8.0.140.0040.00416.80
8.0.130.0030.00313.30
8.0.120.0040.00416.87
8.0.110.0030.00316.89
8.0.100.0040.00416.93
8.0.90.0000.00716.71
8.0.80.0000.01716.80
8.0.70.0040.00416.86
8.0.60.0050.00316.76
8.0.50.0000.00716.78
8.0.30.0090.00917.27
8.0.20.0100.00917.40
8.0.10.0030.00316.95
8.0.00.0090.01316.70
7.4.330.0030.00316.67
7.4.320.0030.00316.51
7.4.300.0030.00316.33
7.4.290.0030.00316.41
7.4.280.0040.00416.56
7.4.270.0000.00716.35
7.4.260.0050.00013.10
7.4.250.0030.00616.29
7.4.240.0000.00716.48
7.4.230.0070.00016.43
7.4.220.0120.00616.49
7.4.210.0060.01016.55
7.4.200.0000.00816.45
7.4.190.0000.00716.60
7.4.160.0030.01416.53
7.4.150.0130.00617.40
7.4.140.0110.00917.86
7.4.130.0090.00916.38
7.4.120.0090.01116.45
7.4.110.0070.01016.58
7.4.100.0120.00616.48
7.4.90.0180.00316.36
7.4.80.0070.01019.39
7.4.70.0110.01116.25
7.4.60.0070.01016.57
7.4.50.0060.00316.34
7.4.40.0100.00622.77
7.4.30.0150.00616.23
7.4.10.0120.00614.61
7.4.00.0080.01015.00
7.3.330.0000.00612.94
7.3.320.0050.00013.09
7.3.310.0050.00216.31
7.3.300.0000.00715.97
7.3.290.0070.00716.17
7.3.280.0070.01016.22
7.3.270.0360.02417.40
7.3.260.0110.01118.24
7.3.250.0120.00516.34
7.3.240.0130.00316.46
7.3.230.0070.01016.39
7.3.210.0070.01016.22
7.3.200.0100.00719.39
7.3.190.0110.01116.36
7.3.180.0090.01216.40
7.3.170.0100.00716.27
7.3.160.0080.00816.30
7.3.130.0030.01314.73
7.3.120.0080.01014.78
7.3.110.0070.01414.93
7.3.100.0070.00714.54
7.3.90.0030.01014.65
7.3.80.0060.01314.88
7.3.70.0100.00714.87
7.3.60.0060.00914.89
7.3.50.0070.00714.93
7.3.40.0060.00914.45
7.3.30.0150.00014.84
7.3.20.0100.00316.73
7.3.10.0060.01016.20
7.3.00.0120.00716.29
7.2.330.0210.00316.68
7.2.320.0000.01716.77
7.2.310.0100.01416.74
7.2.300.0070.01616.73
7.2.290.0130.00316.39
7.2.260.0040.01514.80
7.2.250.0140.00315.14
7.2.240.0090.00615.01
7.2.230.0100.00615.04
7.2.220.0060.01315.07
7.2.210.0060.00914.84
7.2.200.0000.01515.02
7.2.190.0070.01014.75
7.2.180.0100.00714.92
7.2.170.0030.01415.08
7.2.160.0030.01015.06
7.2.150.0070.01016.77
7.2.140.0100.00316.80
7.2.130.0120.00616.63
7.2.120.0080.01116.35
7.2.110.0090.00716.46
7.2.100.0080.01116.35
7.2.90.0140.00516.68
7.2.80.0080.00516.71
7.2.70.0080.01016.68
7.2.60.0090.00616.70
7.2.50.0090.00716.82
7.2.40.0080.00516.81
7.2.30.0110.00616.66
7.2.20.0080.01016.55
7.2.10.0140.00616.37
7.2.00.0070.00817.52
7.1.330.0030.01015.61
7.1.320.0120.00615.66
7.1.310.0100.00315.60
7.1.300.0030.01315.37
7.1.290.0080.00415.73
7.1.280.0000.01115.53
7.1.270.0090.00615.71
7.1.260.0060.00915.95
7.1.250.0070.00815.44
7.1.240.0140.00015.52
7.1.230.0080.00415.39
7.1.220.0060.01015.70
7.1.210.0070.01015.70
7.1.200.0110.00315.58
7.1.190.0030.01015.36
7.1.180.0040.00715.76
7.1.170.0050.00515.75
7.1.160.0100.00315.84
7.1.150.0000.01615.42
7.1.140.0030.00915.55
7.1.130.0000.01415.63
7.1.120.0030.01015.68
7.1.110.0060.00315.66
7.1.100.0050.00916.74
7.1.90.0070.00715.45
7.1.80.0030.01015.82
7.1.70.0080.00716.22
7.1.60.0050.01017.39
7.1.50.0090.01325.03
7.1.40.0050.00515.50
7.1.30.0060.00615.84
7.1.20.0090.00015.56
7.1.10.0090.00315.40
7.1.00.0020.04419.09
7.0.330.0060.00915.29
7.0.320.0070.00715.17
7.0.310.0000.01015.44
7.0.300.0030.00715.16
7.0.290.0070.00715.34
7.0.280.0040.00415.53
7.0.270.0080.00415.40
7.0.260.0000.01515.32
7.0.250.0080.00415.26
7.0.240.0030.00915.22
7.0.230.0030.00615.49
7.0.220.0070.00415.52
7.0.210.0100.00315.16
7.0.200.0020.00716.04
7.0.190.0080.00315.28
7.0.180.0070.00415.50
7.0.170.0030.01015.42
7.0.160.0090.00015.32
7.0.150.0060.00615.46
7.0.140.0030.04018.63
7.0.130.0060.00615.33
7.0.120.0060.00615.44
7.0.110.0090.00315.41
7.0.100.0030.02417.78
7.0.90.0050.02717.51
7.0.80.0060.03817.69
7.0.70.0070.04317.59
7.0.60.0060.02317.57
7.0.50.0150.03317.79
7.0.40.0070.04416.74
7.0.30.0060.04616.80
7.0.20.0050.04616.77
7.0.10.0050.04516.77
7.0.00.0080.04016.64
5.6.400.0060.00614.60
5.6.390.0030.00714.18
5.6.380.0070.00414.12
5.6.370.0000.00914.39
5.6.360.0030.00714.13
5.6.350.0000.00814.27
5.6.340.0030.00914.31
5.6.330.0090.00314.05
5.6.320.0100.00014.27
5.6.310.0070.00714.50
5.6.300.0060.00314.27
5.6.290.0050.00514.16
5.6.280.0050.03817.65
5.6.270.0030.00914.25
5.6.260.0070.00714.58
5.6.250.0020.02717.42
5.6.240.0100.03817.43
5.6.230.0050.04217.52
5.6.220.0060.04817.36
5.6.210.0050.04017.51
5.6.200.0160.04217.67
5.6.190.0050.03617.66
5.6.180.0060.04317.64
5.6.170.0050.04217.64
5.6.160.0060.03017.74
5.6.150.0030.03217.48
5.6.140.0080.03817.69
5.6.130.0090.04517.63
5.6.120.0060.04517.61
5.6.110.0070.04517.64
5.6.100.0040.04617.48
5.6.90.0080.04117.67
5.6.80.0070.04317.27
5.6.70.0100.04017.33
5.6.60.0050.02617.41
5.6.50.0050.04017.41
5.6.40.0050.04817.36
5.6.30.0060.02317.33
5.6.20.0130.03317.20
5.6.10.0110.04017.44
5.6.00.0080.02817.22
5.5.380.0090.02517.30
5.5.370.0050.02317.29
5.5.360.0090.04117.21
5.5.350.0050.04717.22
5.5.340.0110.04017.69
5.5.330.0070.02717.55
5.5.320.0090.04517.56
5.5.310.0080.03817.57
5.5.300.0070.04217.54
5.5.290.0020.03417.57
5.5.280.0030.03217.54
5.5.270.0080.04317.56
5.5.260.0050.04917.56
5.5.250.0050.02817.42
5.5.240.0000.04817.29
5.5.230.0100.02017.11
5.5.220.0050.03817.26
5.5.210.0050.04117.22
5.5.200.0020.04517.19
5.5.190.0080.04017.16
5.5.180.0050.04316.98
5.5.170.0070.00314.33
5.5.160.0080.04017.12
5.5.150.0030.04617.20
5.5.140.0100.04017.12
5.5.130.0080.04417.19
5.5.120.0130.04017.08
5.5.110.0060.02517.03
5.5.100.0110.03516.99
5.5.90.0130.03817.16
5.5.80.0030.04017.01
5.5.70.0030.03217.24
5.5.60.0060.02417.06
5.5.50.0090.03917.14
5.5.40.0060.04217.06
5.5.30.0030.04217.14
5.5.20.0050.04517.12
5.5.10.0060.04516.93
5.5.00.0070.04116.98
5.4.450.0030.04715.25
5.4.440.0080.03715.08
5.4.430.0100.02515.10
5.4.420.0050.03715.07
5.4.410.0080.02815.21
5.4.400.0100.03015.04
5.4.390.0050.03614.85
5.4.380.0030.02114.95
5.4.370.0070.03915.06
5.4.360.0030.04414.94
5.4.350.0060.04014.88
5.4.340.0070.04314.78
5.4.330.0040.00411.01
5.4.320.0040.02814.91
5.4.310.0080.02114.86
5.4.300.0070.03914.85
5.4.290.0100.02014.96
5.4.280.0090.03515.03
5.4.270.0090.03214.97
5.4.260.0040.03914.87
5.4.250.0090.03814.83
5.4.240.0100.03215.01
5.4.230.0090.02815.01
5.4.220.0060.03314.85
5.4.210.0010.04114.87
5.4.200.0030.03915.02
5.4.190.0080.02114.84
5.4.180.0050.02514.70
5.4.170.0050.03414.87
5.4.160.0050.04314.90
5.4.150.0060.04315.08
5.4.140.0030.03013.49
5.4.130.0100.02013.63
5.4.120.0130.03013.61
5.4.110.0060.04313.62
5.4.100.0070.03113.57
5.4.90.0060.03713.52
5.4.80.0050.03513.67
5.4.70.0050.02413.69
5.4.60.0030.03713.59
5.4.50.0070.03913.58
5.4.40.0110.03513.60
5.4.30.0040.03413.54
5.4.20.0060.03813.50
5.4.10.0020.03813.51
5.4.00.0020.04013.22
5.3.290.0070.04012.38
5.3.280.0060.03412.45
5.3.270.0010.03812.41
5.3.260.0070.03812.43
5.3.250.0070.03112.31
5.3.240.0020.02612.45
5.3.230.0090.02712.46
5.3.220.0070.03812.35
5.3.210.0090.03612.32
5.3.200.0020.04412.34
5.3.190.0030.02812.30
5.3.180.0050.04112.45
5.3.170.0130.03312.47
5.3.160.0070.03412.48
5.3.150.0020.04312.47
5.3.140.0060.03812.33
5.3.130.0070.03812.41
5.3.120.0030.02412.36
5.3.110.0070.02012.31
5.3.100.0070.03912.14
5.3.90.0020.04312.21
5.3.80.0070.03712.04
5.3.70.0050.03912.08
5.3.60.0080.03012.14
5.3.50.0050.03712.04
5.3.40.0020.03912.11
5.3.30.0010.02311.93
5.3.20.0020.04011.96
5.3.10.0050.01911.69
5.3.00.0030.04211.87
5.2.170.0030.06012.11
5.2.160.0030.06312.11
5.2.150.0030.04312.11
5.2.140.0030.06012.11
5.2.130.0070.05012.11
5.2.120.0030.05712.11
5.2.110.0030.06312.11
5.2.100.0070.05012.11
5.2.90.0000.04712.11
5.2.80.0070.02712.11
5.2.70.0000.06312.11
5.2.60.0030.06312.11
5.2.50.0030.05712.11
5.2.40.0030.06012.11
5.2.30.0030.06012.11
5.2.20.0070.05712.11
5.2.10.0070.04712.11
5.2.00.0030.03312.11
5.1.60.0030.05012.11
5.1.50.0030.05712.11
5.1.40.0030.04712.11
5.1.30.0000.06312.11
5.1.20.0030.05712.11
5.1.10.0030.04712.11
5.1.00.0070.05712.11
5.0.50.0000.04712.11
5.0.40.0000.04012.11
5.0.30.0030.06312.11
5.0.20.0100.03012.11
5.0.10.0070.03712.11
5.0.00.0070.05712.11
4.4.90.0000.02712.11
4.4.80.0030.02312.11
4.4.70.0030.03312.11
4.4.60.0000.03312.11
4.4.50.0070.02312.11
4.4.40.0000.05012.11
4.4.30.0000.02012.11
4.4.20.0000.03012.11
4.4.10.0030.03012.11
4.4.00.0000.06012.11
4.3.110.0030.01712.11
4.3.100.0070.03012.11
4.3.90.0000.03312.11
4.3.80.0070.05012.11
4.3.70.0000.03012.11
4.3.60.0030.03012.11
4.3.50.0000.02312.11
4.3.40.0000.05712.11
4.3.30.0000.03312.11
4.3.20.0030.03312.11
4.3.10.0100.03012.11
4.3.00.0000.03312.11

preferences:
49.52 ms | 400 KiB | 5 Q