3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace('/\//', '\\\\', "Using 4 slashes: a / b\n"); echo preg_replace('/\//', '\\\\\\\\', "Using 8 slashes: a / b\n");

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)
8.3.60.0130.00616.50
8.3.50.0110.00718.02
8.3.40.0070.00718.96
8.3.30.0070.00718.84
8.3.20.0070.00020.01
8.3.10.0060.00321.73
8.3.00.0080.00022.31
8.2.180.0100.01018.67
8.2.170.0070.00722.96
8.2.160.0110.00319.34
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.07
8.2.110.0060.00320.80
8.2.100.0070.00317.79
8.2.90.0080.00018.03
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0060.00317.91
8.2.50.0030.00618.10
8.2.40.0080.00022.25
8.2.30.0000.00719.29
8.2.20.0040.00417.67
8.2.10.0050.00218.02
8.2.00.0100.00017.60
8.1.280.0090.00925.92
8.1.270.0080.00023.84
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0000.00822.25
8.1.230.0090.00322.81
8.1.220.0050.00317.74
8.1.210.0050.00319.95
8.1.200.0060.00317.24
8.1.190.0080.00019.19
8.1.180.0030.00518.10
8.1.170.0040.00718.63
8.1.160.0070.00022.05
8.1.150.0040.00418.82
8.1.140.0000.00719.41
8.1.130.0000.00817.57
8.1.120.0030.00317.39
8.1.110.0070.00017.36
8.1.100.0070.00017.41
8.1.90.0000.00817.36
8.1.80.0050.00217.53
8.1.70.0070.00317.48
8.1.60.0030.00517.60
8.1.50.0040.00417.52
8.1.40.0050.00317.48
8.1.30.0030.00517.59
8.1.20.0000.00817.50
8.1.10.0070.00017.42
8.1.00.0100.00017.50
8.0.300.0070.00020.04
8.0.290.0070.00016.75
8.0.280.0030.00318.49
8.0.270.0070.00017.09
8.0.260.0060.00016.84
8.0.250.0030.00317.04
8.0.240.0000.00716.90
8.0.230.0040.00416.99
8.0.220.0000.00716.87
8.0.210.0000.00816.77
8.0.200.0000.00617.00
8.0.190.0030.00616.94
8.0.180.0030.00516.92
8.0.170.0070.00016.96
8.0.160.0000.00716.91
8.0.150.0000.00816.67
8.0.140.0050.00216.79
8.0.130.0030.00313.28
8.0.120.0040.00416.83
8.0.110.0040.00416.82
8.0.100.0040.00416.92
8.0.90.0050.00216.76
8.0.80.0060.00916.87
8.0.70.0060.00316.75
8.0.60.0020.00516.88
8.0.50.0040.00416.78
8.0.30.0110.00716.99
8.0.20.0120.00917.40
8.0.10.0000.00717.05
8.0.00.0100.00617.01
7.4.330.0050.00015.08
7.4.320.0060.00016.55
7.4.300.0060.00016.59
7.4.290.0070.00016.67
7.4.280.0070.00016.68
7.4.270.0000.00716.55
7.4.260.0090.00016.55
7.4.250.0030.00316.57
7.4.240.0030.00316.48
7.4.230.0050.00216.65
7.4.220.0110.01116.66
7.4.210.0080.00816.70
7.4.200.0000.00716.50
7.4.160.0080.00816.69
7.4.150.0090.00917.40
7.4.140.0180.00017.86
7.4.130.0100.00816.51
7.4.120.0110.00916.53
7.4.110.0120.00616.48
7.4.100.0080.01616.50
7.4.90.0080.00816.55
7.4.80.0090.01219.39
7.4.70.0100.01416.60
7.4.60.0030.01316.55
7.4.50.0100.00616.55
7.4.40.0030.01516.67
7.4.30.0040.01216.54
7.4.00.0040.01115.18
7.3.330.0060.00013.20
7.3.320.0000.00513.06
7.3.310.0030.00616.05
7.3.300.0030.00316.13
7.3.290.0060.00916.29
7.3.280.0110.00716.25
7.3.270.0030.01517.40
7.3.260.0110.01016.59
7.3.250.0130.00516.42
7.3.240.0090.00916.25
7.3.230.0140.00416.39
7.3.210.0130.01016.43
7.3.200.0030.01216.30
7.3.190.0070.01016.47
7.3.180.0080.00816.20
7.3.170.0100.00716.38
7.3.160.0110.01116.31
7.3.10.0030.01016.83
7.3.00.0040.00816.64
7.2.330.0220.00516.54
7.2.320.0080.00816.69
7.2.310.0070.01016.74
7.2.300.0070.01016.54
7.2.290.0150.00616.73
7.2.130.0040.00917.01
7.2.120.0040.01116.92
7.2.110.0070.00616.81
7.2.100.0050.00616.84
7.2.90.0080.00416.78
7.2.80.0050.00716.91
7.2.70.0040.01016.92
7.2.60.0030.00916.82
7.2.50.0070.00416.77
7.2.40.0100.00316.89
7.2.30.0040.00816.95
7.2.20.0040.00816.88
7.2.10.0040.01016.93
7.2.00.0040.01117.52
7.1.250.0060.00815.84
7.1.240.0050.00215.80
7.1.230.0050.00715.82
7.1.220.0030.00715.83
7.1.210.0050.00715.88
7.1.200.0050.00715.72
7.1.190.0030.00915.74
7.1.180.0050.00415.76
7.1.170.0060.00515.89
7.1.160.0050.00515.78
7.1.150.0050.00815.64
7.1.140.0070.00715.86
7.1.130.0030.01015.84
7.1.120.0090.00315.83
7.1.110.0020.00815.82
7.1.100.0080.00515.74
7.1.90.0070.00615.73
7.1.80.0050.00515.65
7.1.70.0030.00516.25
7.1.60.0020.01216.16
7.1.50.0030.00715.96
7.1.40.0030.01015.93
7.1.30.0050.00915.81
7.1.20.0080.00615.82
7.1.10.0030.01015.74
7.1.00.0090.02718.11
7.0.330.0040.00415.50
7.0.320.0100.00315.51
7.0.310.0050.00715.44
7.0.300.0050.00515.30
7.0.290.0040.00515.35
7.0.280.0070.00515.36
7.0.270.0040.00415.33
7.0.260.0060.00615.30
7.0.250.0060.00715.44
7.0.240.0070.00415.36
7.0.230.0020.00715.58
7.0.220.0000.00915.35
7.0.210.0070.00515.40
7.0.200.0040.00615.13
7.0.190.0030.00815.54
7.0.180.0030.00615.50
7.0.170.0060.00615.19
7.0.160.0020.00815.42
7.0.150.0070.00415.26
7.0.140.0030.00615.31
7.0.130.0030.00615.45
7.0.120.0030.00815.51
7.0.110.0030.01015.35
7.0.100.0140.02016.99
7.0.90.0330.02416.90
7.0.80.0570.02316.90
7.0.70.0400.01816.91
7.0.60.0350.02117.04
7.0.50.0060.02417.07
7.0.40.0450.03115.75
7.0.30.0550.02815.79
7.0.20.0370.02315.84
7.0.10.0370.02215.72
7.0.00.0480.02715.74
5.6.380.0080.00214.28
5.6.370.0040.00614.19
5.6.360.0050.00614.20
5.6.350.0080.00614.19
5.6.340.0060.00414.21
5.6.330.0030.00914.30
5.6.320.0050.00814.22
5.6.310.0020.01014.12
5.6.300.0060.00614.28
5.6.290.0070.00714.35
5.6.280.0030.00714.36
5.6.270.0090.00414.20
5.6.260.0070.00513.99
5.6.250.0110.02116.46
5.6.240.0080.02316.40
5.6.230.0070.02316.17
5.6.220.0120.02916.38
5.6.210.0060.02516.38
5.6.200.0100.02216.51
5.6.190.0070.03316.63
5.6.180.0110.02816.41
5.6.170.0110.02216.53
5.6.160.0060.02516.53
5.6.150.0100.02216.48
5.6.140.0060.02316.45
5.6.130.0100.02016.46
5.6.120.0040.02516.44
5.6.110.0120.01916.39
5.6.100.0090.03016.58
5.6.90.0080.02316.47
5.6.80.0120.02216.17
5.6.70.0080.02216.08
5.6.60.0060.02416.18
5.6.50.0090.01916.30
5.6.40.0100.02016.10
5.6.30.0020.02716.25
5.6.20.0070.02316.40
5.6.10.0050.02416.19
5.6.00.0100.02216.09

preferences:
58.25 ms | 401 KiB | 5 Q