3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strtolower(preg_replace('/([a-zA-Z])\s+=([a-zA-Z])/', '$1_$2', 'algo = algo'));

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)
8.3.40.0180.00418.96
8.3.30.0030.01020.34
8.3.20.0050.00320.16
8.3.10.0060.00320.96
8.3.00.0060.00322.25
8.2.170.0090.00922.96
8.2.160.0110.00322.37
8.2.150.0030.00524.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00420.92
8.2.110.0090.00020.52
8.2.100.0060.00619.89
8.2.90.0040.00418.03
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0060.00318.03
8.2.30.0040.00419.51
8.2.20.0000.00717.69
8.2.10.0050.00317.81
8.2.00.0060.00317.58
8.1.270.0050.00323.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.14
8.1.230.0040.00720.89
8.1.220.0050.00517.74
8.1.210.0000.00818.85
8.1.200.0030.00617.35
8.1.190.0050.00317.38
8.1.180.0030.00718.10
8.1.170.0040.00418.62
8.1.160.0050.00318.78
8.1.150.0040.00418.70
8.1.140.0000.00717.52
8.1.130.0070.00017.78
8.1.120.0030.00417.47
8.1.110.0040.00417.48
8.1.100.0030.00317.36
8.1.90.0030.00517.45
8.1.80.0030.00517.53
8.1.70.0030.00317.49
8.1.60.0090.00017.52
8.1.50.0040.00417.36
8.1.40.0040.00417.47
8.1.30.0000.00817.64
8.1.20.0070.00017.68
8.1.10.0070.00017.58
8.1.00.0040.00417.48
8.0.300.0000.00720.06
8.0.290.0000.00717.05
8.0.280.0070.00018.39
8.0.270.0070.00017.25
8.0.260.0030.00516.89
8.0.250.0000.00717.05
8.0.240.0040.00416.92
8.0.230.0070.00016.96
8.0.220.0040.00416.84
8.0.210.0030.00316.94
8.0.200.0030.00316.97
8.0.190.0030.00516.86
8.0.180.0020.00516.85
8.0.170.0000.00716.89
8.0.160.0040.00416.95
8.0.150.0000.00816.76
8.0.140.0030.00616.83
8.0.130.0030.00313.29
8.0.120.0050.00316.82
8.0.110.0050.00316.79
8.0.100.0000.00816.93
8.0.90.0050.00316.80
8.0.80.0070.01416.79
8.0.70.0070.00016.90
8.0.60.0040.00416.96
8.0.50.0000.00716.88
8.0.30.0110.01017.15
8.0.20.0140.00817.40
8.0.10.0000.00717.00
8.0.00.0080.01316.81
7.4.330.0000.00516.80
7.4.320.0040.00416.71
7.4.300.0030.00316.57
7.4.290.0070.00016.50
7.4.280.0040.00416.50
7.4.270.0000.00716.59
7.4.260.0030.00313.22
7.4.250.0040.00416.52
7.4.240.0040.00416.55
7.4.230.0070.00016.32
7.4.220.0120.00616.72
7.4.210.0060.00716.60
7.4.200.0000.00716.75
7.4.190.0030.00316.48
7.4.160.0130.00316.53
7.4.150.0080.00917.40
7.4.140.0130.00617.86
7.4.130.0080.01016.66
7.4.120.0110.00616.67
7.4.110.0150.01816.50
7.4.100.0090.00916.64
7.4.90.0070.01016.48
7.4.80.0070.01019.39
7.4.70.0070.01416.52
7.4.60.0100.00616.49
7.4.50.0000.00916.40
7.4.40.0060.00922.77
7.4.30.0090.01216.68
7.4.10.0040.01415.02
7.4.00.0040.01114.98
7.3.330.0000.00513.11
7.3.320.0050.00013.12
7.3.310.0080.00016.23
7.3.300.0000.00616.31
7.3.290.0040.01116.27
7.3.280.0100.00616.29
7.3.270.0400.02117.40
7.3.260.0130.00518.24
7.3.250.0110.00816.45
7.3.240.0110.00716.57
7.3.230.0060.01016.39
7.3.210.0060.00916.67
7.3.200.0140.00319.39
7.3.190.0140.00316.59
7.3.180.0030.01316.50
7.3.170.0100.00616.62
7.3.160.0090.01216.46
7.3.130.0120.00615.07
7.3.120.0040.01214.87
7.3.110.0100.00514.98
7.3.100.0080.00814.70
7.3.90.0050.01314.88
7.3.80.0100.00515.14
7.3.70.0060.00514.96
7.3.60.0080.00814.99
7.3.50.0090.00414.77
7.3.40.0050.00714.69
7.3.30.0060.00614.94
7.3.20.0030.00816.82
7.3.10.0060.00616.63
7.3.00.0030.00916.64
7.2.330.0030.01416.59
7.2.320.0030.01716.57
7.2.310.0080.01016.45
7.2.300.0030.01716.50
7.2.290.0190.00316.54
7.2.260.0100.00615.07
7.2.250.0050.01315.30
7.2.240.0050.01015.15
7.2.230.0030.01115.04
7.2.220.0070.01015.13
7.2.210.0070.00814.94
7.2.200.0090.00615.03
7.2.190.0030.00715.12
7.2.180.0030.01014.92
7.2.170.0060.00914.92
7.2.160.0070.01015.13
7.2.150.0030.00716.88
7.2.140.0120.00416.92
7.2.130.0000.01316.95
7.2.120.0090.00917.13
7.2.110.0090.00616.93
7.2.100.0000.01316.75
7.2.90.0100.00016.77
7.2.80.0100.00316.87
7.2.70.0110.00416.74
7.2.60.0070.00516.97
7.2.50.0060.01016.67
7.2.40.0030.00716.81
7.2.30.0070.00717.15
7.2.20.0060.00917.02
7.2.10.0030.01016.92
7.2.00.0060.00818.14
7.1.330.0050.00815.94
7.1.320.0050.00915.92
7.1.310.0050.00915.94
7.1.300.0030.00915.64
7.1.290.0060.00315.80
7.1.280.0070.00615.73
7.1.270.0000.01715.79
7.1.260.0070.00915.73
7.1.250.0090.00315.50
7.1.240.0060.00915.73
7.1.230.0050.00515.80
7.1.220.0060.00615.84
7.1.210.0130.00315.87
7.1.200.0020.01315.77
7.1.190.0080.00415.87
7.1.180.0070.01115.90
7.1.170.0000.01215.86
7.1.160.0040.00715.98
7.1.150.0120.00415.47
7.1.140.0030.01015.90
7.1.130.0070.00415.89
7.1.120.0070.00715.62
7.1.110.0080.00515.68
7.1.100.0000.01116.95
7.1.90.0000.01015.72
7.1.80.0100.00315.57
7.1.70.0090.00316.58
7.1.60.0130.00717.57
7.1.50.0080.01016.44
7.1.40.0000.01115.89
7.1.30.0060.00615.74
7.1.20.0060.00915.59
7.1.10.0060.00615.58
7.1.00.0070.02019.28
7.0.330.0000.01215.28
7.0.320.0060.01015.51
7.0.310.0040.00815.44
7.0.300.0100.00715.49
7.0.290.0110.00015.42
7.0.280.0040.00815.18
7.0.270.0090.00315.26
7.0.260.0000.01015.54
7.0.250.0110.00015.52
7.0.240.0080.00315.61
7.0.230.0060.00615.28
7.0.220.0000.00815.48
7.0.210.0080.00415.17
7.0.200.0030.00716.21
7.0.190.0000.01415.63
7.0.180.0040.00715.61
7.0.170.0070.00315.49
7.0.160.0030.01015.50
7.0.150.0050.00515.25
7.0.140.0030.04218.58
7.0.130.0000.01315.47
7.0.120.0100.00615.56
7.0.110.0040.01115.32
7.0.100.0040.02517.67
7.0.90.0090.01917.63
7.0.80.0120.02217.73
7.0.70.0070.03717.86
7.0.60.0080.04517.74
7.0.50.0080.03817.94
7.0.40.0030.04716.66
7.0.30.0050.03016.74
7.0.20.0050.04816.77
7.0.10.0030.03016.75
7.0.00.0050.04316.82
5.6.400.0070.00714.50
5.6.390.0090.00614.22
5.6.380.0100.00314.36
5.6.370.0030.00614.28
5.6.360.0080.00614.30
5.6.350.0030.00614.31
5.6.340.0040.00414.11
5.6.330.0060.00613.87
5.6.320.0120.00014.25
5.6.310.0030.00714.38
5.6.300.0090.00614.53
5.6.290.0070.00714.00
5.6.280.0060.04017.76
5.6.270.0110.00014.50
5.6.260.0030.00814.28
5.6.250.0070.02217.52
5.6.240.0050.02317.35
5.6.230.0080.02317.39
5.6.220.0070.02217.37
5.6.210.0060.04617.34
5.6.200.0080.04317.56
5.6.190.0110.03617.52
5.6.180.0030.04317.60
5.6.170.0120.04017.66
5.6.160.0080.04117.64
5.6.150.0050.03217.65
5.6.140.0120.03517.65
5.6.130.0050.04017.75
5.6.120.0070.03017.71
5.6.110.0030.04717.70
5.6.100.0080.03317.76
5.6.90.0090.04217.63
5.6.80.0050.04517.35
5.6.70.0050.03017.36
5.6.60.0030.04317.16
5.6.50.0080.02517.31
5.6.40.0030.04817.35
5.6.30.0070.04317.38
5.6.20.0090.03917.30
5.6.10.0070.04317.30
5.6.00.0020.03217.31
5.5.380.0150.01717.20
5.5.370.0030.02117.24
5.5.360.0030.03317.31
5.5.350.0130.03317.16
5.5.340.0090.04217.51
5.5.330.0080.03517.65
5.5.320.0070.03517.52
5.5.310.0100.04217.38
5.5.300.0030.04817.35
5.5.290.0080.02517.50
5.5.280.0090.04217.46
5.5.270.0040.03617.39
5.5.260.0090.04117.51
5.5.250.0000.05617.30
5.5.240.0090.04017.13
5.5.230.0140.03317.19
5.5.220.0120.03517.29
5.5.210.0070.02917.13
5.5.200.0050.04717.19
5.5.190.0080.02516.99
5.5.180.0060.03917.12
5.5.170.0040.01414.04
5.5.160.0070.04017.18
5.5.150.0000.04516.98
5.5.140.0100.04117.14
5.5.130.0110.04117.12
5.5.120.0050.04817.13
5.5.110.0080.02317.10
5.5.100.0040.02817.04
5.5.90.0070.02517.03
5.5.80.0040.04416.97
5.5.70.0130.02517.03
5.5.60.0070.03516.99
5.5.50.0050.03317.10
5.5.40.0050.02717.00
5.5.30.0050.04217.05
5.5.20.0070.04017.13
5.5.10.0050.04517.19
5.5.00.0090.04417.02
5.4.450.0030.04615.33
5.4.440.0050.02715.07
5.4.430.0020.02814.95
5.4.420.0030.03315.20
5.4.410.0100.03515.11
5.4.400.0140.03015.06
5.4.390.0090.02314.98
5.4.380.0060.03715.07
5.4.370.0080.03414.87
5.4.360.0090.03515.05
5.4.350.0070.03314.82
5.4.340.0050.03114.90
5.4.330.0110.00410.76
5.4.320.0060.02714.93
5.4.310.0050.03815.05
5.4.300.0030.03015.09
5.4.290.0030.03514.97
5.4.280.0050.04315.00
5.4.270.0060.03014.98
5.4.260.0080.03714.82
5.4.250.0080.04014.93
5.4.240.0030.04014.84
5.4.230.0100.03614.84
5.4.220.0060.03914.97
5.4.210.0050.03514.88
5.4.200.0000.04514.91
5.4.190.0020.03514.98
5.4.180.0050.03814.83
5.4.170.0080.02114.83
5.4.160.0070.03714.88
5.4.150.0080.03714.85
5.4.140.0080.03513.62
5.4.130.0080.03513.54
5.4.120.0110.03513.45
5.4.110.0070.03913.61
5.4.100.0070.03213.63
5.4.90.0120.03213.71
5.4.80.0000.02713.65
5.4.70.0070.03313.61
5.4.60.0080.03113.54
5.4.50.0030.03813.67
5.4.40.0090.03913.63
5.4.30.0060.03113.51
5.4.20.0060.02513.51
5.4.10.0100.03313.51
5.4.00.0070.03713.03
5.3.290.0070.04112.56
5.3.280.0050.04012.42
5.3.270.0020.04012.46
5.3.260.0070.03412.45
5.3.250.0050.03812.54
5.3.240.0070.02312.46
5.3.230.0040.03912.46
5.3.220.0070.03712.45
5.3.210.0090.02712.37
5.3.200.0060.03612.38
5.3.190.0040.04312.44
5.3.180.0030.04012.46
5.3.170.0050.03012.43
5.3.160.0050.04112.51
5.3.150.0050.03812.50
5.3.140.0090.03212.35
5.3.130.0090.03812.44
5.3.120.0050.03712.44
5.3.110.0060.04012.53
5.3.100.0040.03212.22
5.3.90.0020.03512.15
5.3.80.0030.02812.06
5.3.70.0030.04212.05
5.3.60.0090.02812.19
5.3.50.0050.03612.11
5.3.40.0070.03712.13
5.3.30.0050.03512.14
5.3.20.0050.03812.00
5.3.10.0020.04211.99
5.3.00.0030.03811.96
5.2.170.0030.05311.13
5.2.160.0030.05711.16
5.2.150.0070.04711.13
5.2.140.0070.06311.10
5.2.130.0030.06011.09
5.2.120.0070.06011.13
5.2.110.0100.05311.06
5.2.100.0130.05310.96
5.2.90.0070.06010.96
5.2.80.0100.06011.13
5.2.70.0100.04310.94
5.2.60.0030.06010.99
5.2.50.0030.05711.02
5.2.40.0130.05310.98
5.2.30.0070.03310.83
5.2.20.0070.05310.81
5.2.10.0100.05310.76
5.2.00.0030.04310.78
5.1.60.0070.04710.01
5.1.50.0000.05710.03
5.1.40.0000.0309.85
5.1.30.0000.06310.36
5.1.20.0030.04010.40
5.1.10.0000.05710.08
5.1.00.0100.0509.90
5.0.50.0070.0408.37
5.0.40.0000.0478.29
5.0.30.0000.0408.06
5.0.20.0070.0408.27
5.0.10.0000.0478.15
5.0.00.0000.0578.23
4.4.90.0000.0378.05
4.4.80.0030.0378.05
4.4.70.0100.0108.05
4.4.60.0030.0378.05
4.4.50.0000.0308.05
4.4.40.0000.0338.05
4.4.30.0100.0278.05
4.4.20.0000.0378.05
4.4.10.0070.0338.05
4.4.00.0100.0508.05
4.3.110.0000.0408.05
4.3.100.0000.0378.05
4.3.90.0000.0378.05
4.3.80.0070.0538.05
4.3.70.0070.0308.05
4.3.60.0070.0338.05
4.3.50.0000.0378.05
4.3.40.0030.0478.05
4.3.30.0000.0378.05
4.3.20.0000.0378.05
4.3.10.0000.0338.05
4.3.00.0000.0338.05

preferences:
47.96 ms | 400 KiB | 5 Q