3v4l.org

run code in 300+ PHP versions simultaneously
<?php Echo substr_replace('abcd', 'x', 1, -3); //axbcd

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)
8.3.70.0040.01118.18
8.3.60.0150.00718.41
8.3.50.0170.00017.95
8.3.40.0070.00718.85
8.3.30.0040.01118.65
8.3.20.0040.00419.17
8.3.10.0070.00723.61
8.3.00.0040.00420.77
8.2.190.0090.00616.58
8.2.180.0130.00318.41
8.2.170.0120.00622.96
8.2.160.0100.00322.25
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0070.00317.95
8.2.120.0040.00426.35
8.2.110.0000.00920.25
8.2.100.0090.00317.84
8.2.90.0080.00017.72
8.2.80.0050.00217.97
8.2.70.0030.00617.93
8.2.60.0060.00318.03
8.2.50.0040.00418.10
8.2.40.0080.00019.35
8.2.30.0030.00619.04
8.2.20.0070.00017.87
8.2.10.0040.00417.92
8.2.00.0040.00417.46
8.1.280.0120.00625.92
8.1.270.0080.00018.75
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0090.00317.27
8.1.230.0040.00722.61
8.1.220.0030.00517.74
8.1.210.0050.00318.90
8.1.200.0030.00617.23
8.1.190.0060.00317.11
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0050.00218.72
8.1.150.0000.00718.77
8.1.140.0000.00722.04
8.1.130.0030.00320.20
8.1.120.0040.00417.32
8.1.110.0040.00417.31
8.1.100.0040.00417.39
8.1.90.0040.00417.33
8.1.80.0050.00317.21
8.1.70.0000.00717.29
8.1.60.0040.00417.39
8.1.50.0000.00817.46
8.1.40.0000.00717.27
8.1.30.0050.00317.48
8.1.20.0040.00417.55
8.1.10.0000.00817.30
8.1.00.0080.00017.39
8.0.300.0040.00419.73
8.0.290.0060.00316.63
8.0.280.0000.00718.43
8.0.270.0040.00417.24
8.0.260.0000.00618.42
8.0.250.0000.00716.80
8.0.240.0070.00016.91
8.0.230.0070.00016.81
8.0.220.0080.00016.64
8.0.210.0000.00716.82
8.0.200.0030.00316.85
8.0.190.0080.00016.74
8.0.180.0040.00416.80
8.0.170.0090.00016.82
8.0.160.0040.00416.77
8.0.150.0050.00316.75
8.0.140.0040.00416.72
8.0.130.0030.00313.17
8.0.120.0050.00316.66
8.0.110.0040.00416.66
8.0.100.0040.00416.82
8.0.90.0000.00716.83
8.0.80.0140.00616.75
8.0.70.0000.00816.79
8.0.60.0050.00316.62
8.0.50.0040.00416.64
8.0.30.0120.00617.04
8.0.20.0120.00617.40
8.0.10.0050.00316.77
8.0.00.0120.00616.74
7.4.330.0000.00515.55
7.4.320.0050.00216.30
7.4.300.0070.00016.32
7.4.290.0000.00716.45
7.4.280.0080.00016.46
7.4.270.0070.00316.38
7.4.260.0030.00316.48
7.4.250.0090.00016.31
7.4.240.0000.00716.39
7.4.230.0030.00316.25
7.4.220.0070.00016.38
7.4.210.0040.01216.45
7.4.200.0000.00716.14
7.4.160.0090.00816.32
7.4.140.0110.00817.86
7.4.130.0140.00316.28
7.4.120.0090.01016.47
7.4.110.0130.01016.55
7.4.100.0080.00816.32
7.4.90.0240.00016.41
7.4.80.0080.01419.39
7.4.70.0110.00616.34
7.4.60.0040.01416.58
7.4.50.0100.00716.26
7.4.40.0110.00616.41
7.4.00.0050.01014.84
7.3.330.0000.00512.97
7.3.320.0000.00612.98
7.3.310.0040.00415.96
7.3.300.0030.00316.18
7.3.290.0000.00716.13
7.3.280.0080.00816.13
7.3.260.0080.01116.25
7.3.240.0100.00816.35
7.3.230.0070.01016.36
7.3.210.0100.01016.20
7.3.200.0040.01516.22
7.3.190.0130.00716.02
7.3.180.0110.00516.47
7.3.170.0130.00316.13
7.3.160.0120.00616.37
7.3.120.0100.00714.68
7.3.110.0070.00714.46
7.3.100.0110.00314.82
7.3.90.0050.01014.63
7.3.80.0050.01014.85
7.3.70.0050.00814.65
7.3.60.0100.00414.61
7.3.50.0040.01014.64
7.3.40.0090.00614.64
7.3.30.0050.00814.62
7.3.20.0060.00716.59
7.3.10.0090.00616.44
7.3.00.0070.00816.52
7.2.330.0100.00716.59
7.2.320.0180.00516.48
7.2.310.0100.00716.16
7.2.300.0090.00616.44
7.2.290.0030.01316.64
7.2.250.0070.01014.79
7.2.240.0030.01514.82
7.2.230.0050.00914.71
7.2.220.0070.00714.98
7.2.210.0080.00814.68
7.2.200.0050.00714.77
7.2.190.0050.00914.88
7.2.180.0060.00814.87
7.2.170.0050.00914.76
7.2.130.0000.01416.70
7.2.120.0140.00316.33
7.2.110.0140.00815.62
7.2.100.0100.01215.43
7.2.90.0160.00815.33
7.2.80.0140.00915.46
7.2.70.0150.00515.53
7.2.60.0320.00815.47
7.2.50.0130.00615.83
7.2.40.0130.00915.64
7.2.30.0190.01015.63
7.2.20.0200.00615.65
7.2.10.0270.00815.82
7.2.00.0150.00815.63
7.1.330.0060.00715.71
7.1.320.0070.00715.54
7.1.310.0050.01015.72
7.1.300.0040.01015.52
7.1.290.0050.00915.54
7.1.280.0080.00815.71
7.1.270.0050.00815.57
7.1.260.0080.00715.51
7.1.250.0000.01115.63
7.1.230.0210.01013.75
7.1.220.0500.00713.70
7.1.210.0290.01013.61
7.1.200.0340.00913.84
7.1.190.0360.00713.42
7.1.180.0390.00713.42
7.1.170.0730.01313.43
7.1.160.0190.01213.52
7.1.150.0310.01313.75
7.1.140.0290.00413.80
7.1.130.0230.01013.88
7.1.120.0240.00713.42
7.1.110.0380.00713.66
7.1.100.0240.00613.70
7.1.90.0290.00413.81
7.1.80.0270.00713.73
7.1.70.0290.00013.34
7.1.60.0360.01331.44
7.1.50.0420.00731.62
7.1.40.0460.01031.41
7.1.30.0510.01031.53
7.1.20.0570.00931.61
7.1.10.0320.00613.95
7.1.00.0280.01113.89
5.6.380.0040.00813.70

preferences:
60.99 ms | 401 KiB | 5 Q