3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump($_SERVER); setlocale(LC_ALL, 'ru_RU.CP1251'); if (count($_SERVER) === 21) { mb_internal_encoding('UTF-8'); $crc32 = crc32(mb_strtolower(str_replace('ё', 'е', 'Алёна'))); } else { $crc32 = crc32(strtolower(str_replace('ё', 'е', 'Алёна'))); } setlocale(LC_ALL, null); var_dump($crc32);

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)
8.3.60.0090.00616.63
8.3.50.0040.01118.07
8.3.40.0060.01018.84
8.3.30.0210.00318.54
8.3.20.0150.00320.33
8.3.10.0060.01223.66
8.3.00.0090.00023.52
8.2.180.0090.00618.04
8.2.170.0100.01322.96
8.2.160.0070.00720.47
8.2.150.0060.00324.18
8.2.140.0040.01624.66
8.2.130.0050.00322.24
8.2.120.0030.00626.35
8.2.110.0090.00022.07
8.2.100.0040.00817.93
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0060.00617.63
8.2.60.0140.00717.41
8.2.50.0030.00618.07
8.2.40.0000.00922.14
8.2.30.0000.00720.67
8.2.20.0050.00317.80
8.2.10.0000.00818.06
8.2.00.0000.00818.13
8.1.280.0110.00725.92
8.1.270.0100.00024.02
8.1.260.0070.01128.09
8.1.250.0060.00328.09
8.1.240.0120.00020.76
8.1.230.0120.00019.16
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0070.00317.36
8.1.190.0000.00817.22
8.1.180.0060.00318.10
8.1.170.0040.00418.66
8.1.160.0040.00420.70
8.1.150.0000.00718.86
8.1.140.0040.00419.63
8.1.130.0040.00417.70
8.1.120.0000.00717.46
8.1.110.0040.00417.39
8.1.100.0000.00717.37
8.1.90.0090.00017.33
8.1.80.0030.00617.38
8.1.70.0040.00417.45
8.1.60.0000.00817.55
8.1.50.0040.00417.57
8.1.40.0000.00817.42
8.1.30.0030.00617.64
8.1.20.0040.00417.54
8.1.10.0050.00317.57
8.1.00.0000.00917.46
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0050.00218.47
8.0.270.0030.00417.32
8.0.260.0040.00417.25
8.0.250.0070.00016.94
8.0.240.0020.00516.89
8.0.230.0040.00416.99
8.0.220.0070.00016.85
8.0.210.0080.00016.96
8.0.200.0040.00416.88
8.0.190.0130.00016.91
8.0.180.0040.00416.82
8.0.170.0050.00217.00
8.0.160.0040.00416.89
8.0.150.0000.00716.88
8.0.140.0000.01216.89
8.0.130.0090.00013.43
8.0.120.0040.00416.96
8.0.110.0080.00016.97
8.0.100.0030.00516.74
8.0.90.0070.00016.88
8.0.80.0150.00617.00
8.0.70.0000.00817.02
8.0.60.0040.00416.77
8.0.50.0000.00816.91
8.0.30.0120.01016.96
8.0.20.0140.00717.40
8.0.10.0040.00417.06
8.0.00.0180.00516.87
7.4.330.0050.00016.74
7.4.320.0080.00016.69
7.4.300.0030.00316.71
7.4.290.0000.00716.64
7.4.280.0000.00916.45
7.4.270.0030.00316.56
7.4.260.0030.00316.66
7.4.250.0000.00716.55
7.4.240.0000.00716.60
7.4.230.0000.00716.60
7.4.220.0070.01316.69
7.4.210.0080.00716.55
7.4.200.0000.00716.45
7.4.160.0030.01316.57
7.4.150.0190.00917.40
7.4.140.0080.01417.86
7.4.130.0050.01516.54
7.4.120.0090.00916.66
7.4.110.0040.01416.71
7.4.100.0140.00316.52
7.4.90.0110.00716.65
7.4.80.0100.01019.39
7.4.70.0090.00816.59
7.4.60.0100.00916.51
7.4.50.0100.00516.59
7.4.40.0120.00916.61
7.4.30.0070.01016.32
7.4.20.0030.01316.58
7.4.10.0100.01016.37
7.4.00.0090.00615.78
7.3.330.0030.00313.10
7.3.320.0000.00713.04
7.3.310.0000.00716.32
7.3.300.0070.00016.29
7.3.290.0000.00716.16
7.3.280.0100.00716.21
7.3.270.0150.00317.40
7.3.260.0090.00916.27
7.3.250.0100.00816.38
7.3.240.0100.01216.30
7.3.230.0060.01316.42
7.3.210.0070.01416.29
7.3.200.0120.00819.39
7.3.190.0080.00816.31
7.3.180.0110.00816.43
7.3.170.0100.00616.35
7.3.160.0120.00516.20
7.3.150.0100.00716.36
7.3.140.0140.00316.17
7.3.130.0060.01216.50
7.3.120.0100.01016.52
7.3.110.0060.00916.16
7.3.100.0090.01416.13
7.3.90.0070.01016.34
7.3.80.0060.00916.35
7.3.70.0110.00516.37
7.3.60.0140.00816.16
7.3.50.0100.00716.26
7.3.40.0110.00716.10
7.3.30.0060.01016.35
7.3.20.0190.00016.34
7.3.10.0150.00416.23
7.3.00.0140.00316.32
7.2.330.0120.01316.84
7.2.320.0180.00416.59
7.2.310.0060.01616.60
7.2.300.0110.01116.45
7.2.290.0070.01016.51
7.2.280.0140.00516.61
7.2.270.0170.00016.36
7.2.260.0120.00616.64
7.2.250.0140.00416.36
7.2.240.0130.00316.63
7.2.230.0150.00816.41
7.2.220.0100.01016.31
7.2.210.0060.01016.55
7.2.200.0130.00616.65
7.2.190.0060.01316.59
7.2.180.0140.00316.38
7.2.170.0070.01016.42
7.2.160.0070.01016.64
7.2.150.0100.00716.65
7.2.140.0060.01216.73
7.2.130.0100.00716.67
7.2.120.0150.00316.53
7.2.110.0280.00616.52
7.2.100.0050.01416.58
7.2.90.0090.00816.54
7.2.80.0060.01216.77
7.2.70.0110.00716.68
7.2.60.0080.00616.63
7.2.50.0070.01016.70
7.2.40.0090.00916.50
7.2.30.0120.00616.70
7.2.20.0030.01616.46
7.2.10.0110.01416.70
7.2.00.0070.00917.95
7.1.330.0130.00315.53
7.1.320.0080.00815.59
7.1.310.0080.00815.49
7.1.300.0060.00915.30
7.1.290.0000.01615.71
7.1.280.0150.00015.46
7.1.270.0100.00615.37
7.1.260.0130.00315.43
7.1.250.0070.01015.46
7.1.240.0060.01015.34
7.1.230.0030.01315.53
7.1.220.0060.00915.65
7.1.210.0070.01515.43
7.1.200.0060.01015.60
7.1.190.0150.00615.16
7.1.180.0090.00615.44
7.1.170.0060.01015.47
7.1.160.0100.00615.20
7.1.150.0130.00315.36
7.1.140.0090.00915.51
7.1.130.0060.01015.35
7.1.120.0090.00615.52
7.1.110.0120.00315.50
7.1.100.0080.00816.70
7.1.90.0060.01015.51
7.1.80.0060.00915.55
7.1.70.0070.00616.29
7.1.60.0070.01117.28
7.1.50.0080.01216.15
7.1.40.0100.00715.67
7.1.30.0130.00315.35
7.1.20.0050.01115.46
7.1.10.0050.01015.37
7.1.00.0110.03718.85
7.0.330.0110.01115.11
7.0.320.0150.00014.95
7.0.310.0090.00615.18
7.0.300.0090.00615.11
7.0.290.0060.00915.09
7.0.280.0060.01114.93
7.0.270.0070.01015.18
7.0.260.0140.00315.29
7.0.250.0120.00315.11
7.0.240.0030.01315.09
7.0.230.0090.00615.09
7.0.220.0090.00614.95
7.0.210.0120.00615.39
7.0.200.0140.01014.94
7.0.190.0100.00715.26
7.0.180.0110.00615.07
7.0.170.0030.01315.13
7.0.160.0140.00315.26
7.0.150.0040.01115.03
7.0.140.0090.00615.20
7.0.130.0120.00515.15
7.0.120.0060.01014.86
7.0.110.0070.01015.25
7.0.100.0040.01215.14
7.0.90.0080.00814.94
7.0.80.0130.00715.31
7.0.70.0080.00815.13
7.0.60.0050.04818.36
7.0.50.0090.02616.50
7.0.40.0030.03517.75
7.0.30.0180.04317.55
7.0.20.0170.02417.63
7.0.10.0120.03317.61
7.0.00.0160.04217.57
5.6.400.0070.01115.93
5.6.390.0040.01515.96
5.6.380.0060.01316.03
5.6.370.0100.01016.13
5.6.360.0110.00715.72
5.6.350.0060.01215.69
5.6.340.0120.00615.80
5.6.330.0110.00815.75
5.6.320.0040.01415.64
5.6.310.0110.00916.05
5.6.300.0070.01015.67
5.6.290.0130.00615.67
5.6.280.0130.02318.55
5.6.270.0090.00916.04
5.6.260.0090.00915.90
5.6.250.0040.01815.73
5.6.240.0050.01515.80
5.6.230.0080.01115.80
5.6.220.0030.01515.80
5.6.210.0110.04118.25
5.6.200.0090.02517.04
5.6.190.0140.04318.16
5.6.180.0210.02218.16
5.6.170.0180.04618.20
5.6.160.0080.02618.09
5.6.150.0070.02617.02
5.6.140.0080.02417.02
5.6.130.0080.04516.99
5.6.120.0120.04418.36
5.6.110.0160.04018.45
5.6.100.0100.04318.42
5.6.90.0080.04618.31
5.6.80.0120.04118.04
5.6.70.0090.00915.61
5.6.60.0070.01415.68
5.6.50.0040.01515.86
5.6.40.0030.01315.80
5.6.30.0060.01315.77
5.6.20.0130.00515.80
5.6.10.0140.00415.79
5.6.00.0150.00415.74
5.5.380.0120.00615.91
5.5.370.0130.00715.55
5.5.360.0060.01315.85
5.5.350.0240.04018.16
5.5.340.0130.03816.76
5.5.330.0110.04318.12
5.5.320.0160.02818.05
5.5.310.0150.03818.04
5.5.300.0100.02416.88
5.5.290.0060.03516.81
5.5.280.0110.04518.24
5.5.270.0080.04518.15
5.5.260.0070.04918.28
5.5.250.0160.04018.20
5.5.240.0020.03217.91
5.5.230.0030.01415.63
5.5.220.0110.00815.64
5.5.210.0040.01415.63
5.5.200.0000.01815.54
5.5.190.0090.01215.77
5.5.180.0000.01815.52
5.5.170.0090.00916.02
5.5.160.0060.01215.55
5.5.150.0090.00915.65
5.5.140.0060.01115.69
5.5.130.0090.00915.59
5.5.120.0070.01115.68
5.5.110.0070.01315.80
5.5.100.0120.00915.68
5.5.90.0170.00815.64
5.5.80.0100.01815.77
5.5.70.0100.01215.57
5.5.60.0040.02115.57
5.5.50.0030.01515.57
5.5.40.0130.00515.47
5.5.30.0120.00815.59
5.5.20.0120.00615.53
5.5.10.0060.01315.52
5.5.00.0120.00615.62

preferences:
52.47 ms | 400 KiB | 5 Q