3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = preg_replace('/(\w)(.)?/e', "strtoupper('$1').strtolower('$2')", 'test example'); echo $str; ?>

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)
8.3.60.0030.01116.50
8.3.50.0090.01121.99
8.3.40.0090.00918.68
8.3.30.0170.00018.52
8.3.20.0040.00420.23
8.3.10.0040.00823.39
8.3.00.0030.00517.90
8.2.180.0110.00418.50
8.2.170.0000.01422.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0000.00726.16
8.2.120.0030.00517.50
8.2.110.0060.00321.02
8.2.100.0070.00417.72
8.2.90.0000.00817.91
8.2.80.0080.00417.97
8.2.70.0080.00417.50
8.2.60.0080.00017.92
8.2.50.0060.00318.07
8.2.40.0040.00421.00
8.2.30.0040.00420.50
8.2.20.0080.00017.57
8.2.10.0040.00417.93
8.2.00.0040.00417.94
8.1.280.0040.01125.92
8.1.270.0080.00023.83
8.1.260.0090.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00322.61
8.1.230.0070.00420.97
8.1.220.0040.00417.77
8.1.210.0000.00818.96
8.1.200.0060.00317.35
8.1.190.0000.00817.00
8.1.180.0080.00018.10
8.1.170.0060.00320.29
8.1.160.0080.00021.85
8.1.150.0000.00718.70
8.1.140.0040.00421.36
8.1.130.0040.00417.58
8.1.120.0030.00317.43
8.1.110.0040.00417.28
8.1.100.0000.00717.41
8.1.90.0030.00517.28
8.1.80.0080.00017.42
8.1.70.0050.00217.27
8.1.60.0090.00017.49
8.1.50.0030.00517.46
8.1.40.0030.00617.51
8.1.30.0040.00417.61
8.1.20.0030.00517.57
8.1.10.0040.00417.50
8.1.00.0040.00417.30
8.0.300.0040.00419.96
8.0.290.0000.00716.88
8.0.280.0030.00318.37
8.0.270.0070.00017.31
8.0.260.0070.00017.29
8.0.250.0040.00417.05
8.0.240.0000.00616.91
8.0.230.0000.00716.92
8.0.220.0000.00716.90
8.0.210.0040.00416.92
8.0.200.0060.00016.86
8.0.190.0060.00317.01
8.0.180.0060.00316.93
8.0.170.0070.00016.80
8.0.160.0050.00216.82
8.0.150.0000.00716.96
8.0.140.0040.00416.91
8.0.130.0000.00713.29
8.0.120.0000.00716.74
8.0.110.0040.00416.88
8.0.100.0070.00016.75
8.0.90.0070.00016.88
8.0.80.0030.01516.91
8.0.70.0070.00016.78
8.0.60.0000.00716.77
8.0.50.0040.00416.89
8.0.30.0080.00917.13
8.0.20.0100.00917.40
8.0.10.0070.00016.89
8.0.00.0080.01016.86
7.4.330.0050.00015.08
7.4.320.0060.00016.38
7.4.300.0030.00316.43
7.4.290.0000.00716.55
7.4.280.0050.00316.48
7.4.270.0060.00016.50
7.4.260.0000.00916.33
7.4.250.0050.00316.36
7.4.240.0040.00416.52
7.4.230.0040.00416.45
7.4.220.0130.01016.46
7.4.210.0070.01016.43
7.4.200.0070.00016.59
7.4.160.0090.00616.43
7.4.150.0090.00917.40
7.4.140.0120.01017.86
7.4.130.0110.00816.51
7.4.120.0100.00616.60
7.4.110.0190.00316.49
7.4.100.0060.01516.40
7.4.90.0100.00616.46
7.4.80.0080.00819.39
7.4.70.0090.00616.41
7.4.60.0130.00316.42
7.4.50.0000.00816.43
7.4.40.0100.01316.68
7.4.30.0160.00016.37
7.4.00.0000.01314.86
7.3.330.0000.00513.08
7.3.320.0020.00213.01
7.3.310.0030.00316.12
7.3.300.0000.00716.31
7.3.290.0140.00416.27
7.3.280.0110.00616.26
7.3.270.0100.00717.40
7.3.260.0060.01016.28
7.3.250.0100.00716.33
7.3.240.0090.00916.31
7.3.230.0110.00716.50
7.3.210.0160.00616.38
7.3.200.0130.00316.37
7.3.190.0120.00416.30
7.3.180.0130.00316.23
7.3.170.0030.01316.30
7.3.160.0080.00816.46
7.2.330.0080.00816.68
7.2.320.0100.00716.87
7.2.310.0130.01016.75
7.2.300.0110.03316.87
7.2.290.0100.01116.63
7.2.60.0070.00716.81
7.2.00.0030.01219.58
7.1.200.0060.00615.83
7.1.100.0060.00318.32
7.1.70.0060.00917.29
7.1.60.0030.02119.11
7.1.50.0000.01617.05
7.1.00.0000.08022.32
7.0.200.0040.00815.02
7.0.60.0070.07719.91
7.0.50.0000.04317.89
7.0.40.0100.08320.18
7.0.30.0200.04720.01
7.0.20.0130.04320.10
7.0.10.0270.08020.32
7.0.00.0030.08720.17
5.6.280.0030.03320.98
5.6.210.0100.07720.73
5.6.200.0100.08318.19
5.6.190.0070.04320.49
5.6.180.4200.03720.36
5.6.170.0300.07720.47
5.6.160.0000.06020.44
5.6.150.0230.05018.18
5.6.140.0100.08318.21
5.6.130.0100.03718.11
5.6.120.0130.08021.11
5.6.110.0130.07721.01
5.6.100.0000.08020.98
5.6.90.0070.08320.96
5.6.80.0100.07320.37
5.6.70.0200.06720.51
5.5.350.0170.07020.48
5.5.340.0100.07717.98
5.5.330.0030.06020.13
5.5.320.0170.06720.44
5.5.310.0270.06020.50
5.5.300.0070.04718.01
5.5.290.0000.04718.01
5.5.280.0100.08320.76
5.5.270.0170.07320.72
5.5.260.0170.04720.86
5.5.250.0070.04320.67
5.5.240.0070.04320.18
5.4.450.0230.05719.61
5.4.440.0200.05319.61
5.4.430.0130.06019.58
5.4.420.0300.07019.41
5.4.410.0200.05319.50
5.4.400.0330.03719.16
5.4.390.0200.05318.82
5.4.380.0370.05719.28
5.4.370.0300.06019.14
5.4.360.0200.05319.00
5.4.350.0270.04718.99
5.4.340.0200.05319.14
5.4.320.0200.05318.77
5.4.310.0170.05019.19
5.4.300.0270.04719.14
5.4.290.0130.06319.30
5.4.280.0170.05319.16
5.4.270.0230.05319.20
5.4.260.0130.05719.26
5.4.250.0170.05318.94
5.4.240.0270.04319.18
5.4.230.0200.05318.91
5.4.220.0170.06019.12
5.4.210.0230.05018.80
5.4.200.0230.06019.14
5.4.190.0300.06719.07
5.4.180.0200.06019.15
5.4.170.0100.06019.24
5.4.160.0200.05019.28
5.4.150.0270.04718.79
5.4.140.0200.06716.22
5.4.130.0130.05316.49
5.4.120.0070.06016.44
5.4.110.0170.05316.39
5.4.100.0070.06016.52
5.4.90.0130.05016.52
5.4.80.0230.04016.52
5.4.70.0130.05016.54
5.4.60.0230.04016.46
5.4.50.0170.05016.45
5.4.40.0170.06316.43
5.4.30.0200.04316.44
5.4.20.0070.06016.46
5.4.10.0200.05016.47
5.4.00.0230.04315.71

preferences:
54.24 ms | 401 KiB | 5 Q