3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = strrev('pɹoʍssɐd'); for ($i = 0; $i < mb_strlen($str); $i++) var_dump(chr($str[$i])); ?>

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)
8.3.60.0120.00616.75
8.3.50.0120.00817.37
8.3.40.0110.00318.84
8.3.30.0110.00418.84
8.3.20.0000.00818.77
8.3.10.0050.00318.91
8.3.00.0120.00619.13
8.2.180.0160.00316.88
8.2.170.0110.00422.96
8.2.160.0120.00318.84
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0040.00419.66
8.2.110.0040.00721.03
8.2.100.0060.00619.86
8.2.90.0050.00319.22
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0030.00618.03
8.2.50.0030.00618.07
8.2.40.0060.00319.45
8.2.30.0030.00617.67
8.2.20.0060.00317.66
8.2.10.0050.00219.41
8.2.00.0050.00517.82
8.1.280.0180.00425.92
8.1.270.0080.00023.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00922.66
8.1.230.0070.00422.13
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0090.00017.23
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0000.00918.48
8.1.160.0000.00718.93
8.1.150.0040.00418.61
8.1.140.0050.00217.44
8.1.130.0050.00217.39
8.1.120.0070.00017.40
8.1.110.0040.00417.28
8.1.100.0000.00717.38
8.1.90.0050.00317.27
8.1.80.0000.00717.34
8.1.70.0030.00317.35
8.1.60.0040.00417.57
8.1.50.0040.00417.39
8.1.40.0000.00917.55
8.1.30.0090.00017.57
8.1.20.0030.00617.68
8.1.10.0000.00717.59
8.1.00.0040.00417.48
8.0.300.0020.00518.77
8.0.290.0070.00016.75
8.0.280.0090.00018.43
8.0.270.0000.00717.13
8.0.260.0000.00616.92
8.0.250.0050.00517.01
8.0.240.0000.00717.00
8.0.230.0040.00417.00
8.0.220.0060.00316.93
8.0.210.0070.00017.02
8.0.200.0030.00317.02
8.0.190.0030.00516.93
8.0.180.0000.00716.93
8.0.170.0040.00417.04
8.0.160.0000.00716.96
8.0.150.0060.00316.92
8.0.140.0000.00816.84
8.0.130.0000.00513.40
8.0.120.0030.00616.90
8.0.110.0030.00316.93
8.0.100.0000.00717.02
8.0.90.0000.00816.86
8.0.80.0090.00616.99
8.0.70.0030.00416.91
8.0.60.0040.00417.01
8.0.50.0000.00816.91
8.0.30.0070.01116.91
8.0.20.0140.00517.12
8.0.10.0040.00417.08
8.0.00.0160.00316.61
7.4.330.0000.00512.92
7.4.320.0030.00316.45
7.4.300.0030.00316.55
7.4.290.0030.00316.44
7.4.280.0090.00316.39
7.4.270.0000.00616.55
7.4.260.0000.00713.20
7.4.250.0000.00916.53
7.4.240.0080.00016.52
7.4.230.0060.00316.43
7.4.220.0130.00316.45
7.4.210.0060.00916.50
7.4.200.0030.00316.62
7.4.190.0050.00316.69
7.4.160.0160.01116.50
7.4.150.0080.00816.23
7.4.140.0070.01117.86
7.4.130.0150.00316.50
7.4.120.0070.01116.49
7.4.110.0060.01116.46
7.4.100.0140.00316.51
7.4.90.0160.04216.38
7.4.80.0070.01519.39
7.4.70.0090.01316.55
7.4.60.0060.00916.38
7.4.50.0070.00016.27
7.4.40.0000.01116.51
7.4.30.0030.01416.61
7.4.00.0070.01214.71
7.3.330.0040.00412.99
7.3.320.0000.00513.00
7.3.310.0070.00016.27
7.3.300.0000.00616.12
7.3.290.0110.00616.29
7.3.280.0030.01216.11
7.3.270.0150.00616.24
7.3.260.0120.00616.43
7.3.240.0130.00516.23
7.3.230.0090.00616.48
7.3.210.0130.00616.53
7.3.200.0030.01416.23
7.3.190.0060.01216.38
7.3.180.0090.00616.57
7.3.170.0120.00316.36
7.3.160.0120.00916.46
7.3.120.0070.01114.69
7.3.110.0120.00314.86
7.3.100.0140.00415.08
7.3.90.0110.00914.89
7.3.80.0040.00815.09
7.3.70.0080.00414.48
7.3.60.0000.01414.77
7.3.50.0120.00314.46
7.3.40.0000.00814.64
7.3.30.0000.01314.56
7.3.20.0000.01116.71
7.3.10.0030.00916.71
7.3.00.0070.00716.43
7.2.330.0150.00316.63
7.2.320.0090.00916.39
7.2.310.0080.01716.39
7.2.300.0100.01016.48
7.2.290.0150.00316.34
7.2.250.0070.01414.79
7.2.240.0060.01314.93
7.2.230.0030.00915.01
7.2.220.0100.00715.00
7.2.210.0120.00015.12
7.2.200.0090.00614.91
7.2.190.0060.00614.98
7.2.180.0100.00015.01
7.2.170.0000.00915.06
7.2.00.0080.01119.50
7.1.330.0060.00615.96
7.1.320.0030.01415.70
7.1.310.0070.00715.52
7.1.300.0090.00615.83
7.1.290.0060.00615.90
7.1.280.0140.00015.84
7.1.270.0030.00715.79
7.1.260.0070.00716.04
7.1.70.0030.00817.14
7.1.60.0120.01219.21
7.1.50.0070.01817.01
7.1.00.0070.05022.30
7.0.200.0000.01116.70
7.0.140.0100.06721.99
7.0.120.0070.06022.08
7.0.60.0230.07020.07
7.0.50.0070.03717.89
7.0.40.0130.08019.90
7.0.30.0270.04320.01
7.0.20.0230.06320.32
7.0.10.0130.07720.00
7.0.00.0070.08320.20
5.6.280.0000.07721.11
5.6.210.0030.08720.60
5.6.200.0000.07018.21
5.6.190.0000.08720.60
5.6.180.0470.07720.45
5.6.170.0100.05020.54
5.6.160.0100.08020.38
5.6.150.0070.04718.18
5.6.140.0030.08018.12
5.6.130.0070.08718.12
5.6.120.0130.08021.13
5.6.110.0070.09320.88
5.6.100.0070.04021.10
5.6.90.0200.07020.99
5.6.80.0030.06020.35
5.5.350.0200.07720.51
5.5.340.0070.08718.02
5.5.330.0170.07320.29
5.5.320.0400.04320.50
5.5.310.0300.08020.18
5.5.300.0030.08717.92
5.5.290.0130.06017.90
5.5.280.0130.07720.64
5.5.270.0030.04720.72
5.5.260.0170.07320.72
5.5.250.0030.08020.67
5.5.240.0170.04020.18
5.4.450.0200.06319.43
5.4.440.0200.07319.13
5.4.430.0170.04319.48
5.4.420.0170.04319.38
5.4.410.0230.05719.11
5.4.400.0100.04319.16
5.4.390.0300.07018.81
5.4.380.0330.06319.16
5.4.370.0230.04319.08
5.4.360.0300.06718.90
5.4.350.0130.04319.16
5.4.340.0230.03319.06
5.4.320.0170.04719.16
5.4.310.0200.03318.93
5.4.300.0200.07319.05
5.4.290.0270.07019.08
5.4.280.0300.06318.93
5.4.270.0230.06718.88
5.4.260.0170.05719.24
5.4.250.0270.05018.93
5.4.240.0270.04719.09
5.4.230.0230.06018.88
5.4.220.0270.05719.23
5.4.210.0300.06318.80
5.4.200.0230.07719.08
5.4.190.0270.04019.23
5.4.180.0170.04019.05
5.4.170.0230.07018.81
5.4.160.0130.05019.06
5.4.150.0130.04319.23
5.4.140.0270.05716.26
5.4.130.0200.07316.44
5.4.120.0170.06016.18
5.4.110.0270.04316.18
5.4.100.0300.06016.39
5.4.90.0270.04716.41
5.4.80.0200.04016.48
5.4.70.0170.03716.05
5.4.60.0200.04016.32
5.4.50.0170.03716.04
5.4.40.0200.07316.40
5.4.30.0270.04316.46
5.4.20.0170.07316.15
5.4.10.0270.06016.19
5.4.00.0270.07015.86
5.3.290.0230.04314.52
5.3.280.0230.07014.55
5.3.270.0170.05714.44
5.3.260.0200.03714.43
5.3.250.0200.06714.46
5.3.240.0170.08314.44
5.3.230.0270.04314.61
5.3.220.0270.03014.41
5.3.210.0230.07314.43
5.3.200.0170.04014.61
5.3.190.0230.06314.39
5.3.180.0170.06314.50
5.3.170.0230.06314.65
5.3.160.0270.03314.41
5.3.150.0200.03714.62
5.3.140.0300.06014.50
5.3.130.0170.05714.40
5.3.120.0170.04714.37
5.3.110.0100.04014.45
5.3.100.0130.03714.08
5.3.90.0230.06314.03
5.3.80.0170.05013.86
5.3.70.0270.06314.07
5.3.60.0170.06713.78
5.3.50.0230.04313.72
5.3.40.0200.04013.90
5.3.30.0170.04313.86
5.3.20.0170.07013.53
5.3.10.0200.04013.67
5.3.00.0200.07013.65
5.2.170.0200.06013.21
5.2.160.0130.04013.21
5.2.150.0100.03313.21
5.2.140.0200.05013.21
5.2.130.0170.05013.21
5.2.120.0170.03013.21
5.2.110.0170.04013.21
5.2.100.0130.03313.21
5.2.90.0130.02713.21
5.2.80.0130.04013.21
5.2.70.0200.05713.21
5.2.60.0170.04013.21
5.2.50.0130.02713.21
5.2.40.0170.05713.21
5.2.30.0100.02713.21
5.2.20.0100.06713.21
5.2.10.0200.05013.21
5.2.00.0130.03713.21
5.1.60.0070.03713.21
5.1.50.0170.02713.21
5.1.40.0100.02713.21
5.1.30.0100.03313.21
5.1.20.0130.03313.21
5.1.10.0100.02713.21
5.1.00.0170.02313.21
5.0.50.0100.02013.21
5.0.40.0100.01713.21
5.0.30.0070.03013.21
5.0.20.0030.02713.21
5.0.10.0070.02013.21
5.0.00.0000.03313.21
4.4.90.0070.02313.21
4.4.80.0100.02013.21
4.4.70.0130.02313.21
4.4.60.0100.01713.21
4.4.50.0000.02313.21
4.4.40.0070.02313.21
4.4.30.0070.02013.21
4.4.20.0070.03013.21
4.4.10.0030.03013.21
4.4.00.0070.03313.21
4.3.110.0100.03313.21
4.3.100.0070.01313.21
4.3.90.0030.03013.21
4.3.80.0070.03313.21
4.3.70.0100.01313.21
4.3.60.0030.02013.21
4.3.50.0070.03313.21
4.3.40.0030.04013.21
4.3.30.0030.01313.21
4.3.20.0030.02013.21
4.3.10.0000.02013.21
4.3.00.0030.01313.21

preferences:
54.2 ms | 401 KiB | 5 Q