3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = substr_replace("tata","--",5,100); echo $x;

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)
8.3.40.0090.00618.72
8.3.30.0130.00320.37
8.3.20.0070.00020.31
8.3.10.0000.00820.97
8.3.00.0040.00422.34
8.2.170.0070.00722.96
8.2.160.0100.00322.13
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0080.00020.80
8.2.110.0060.00319.21
8.2.100.0080.00417.84
8.2.90.0000.01119.04
8.2.80.0070.00019.37
8.2.70.0060.00317.50
8.2.60.0060.00317.93
8.2.50.0090.00018.07
8.2.40.0000.00818.09
8.2.30.0040.00419.41
8.2.20.0000.00717.72
8.2.10.0060.00317.67
8.2.00.0000.00917.66
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0070.00728.09
8.1.240.0030.00622.32
8.1.230.0070.00420.88
8.1.220.0000.00818.77
8.1.210.0060.00318.94
8.1.200.0060.00317.10
8.1.190.0060.00317.41
8.1.180.0000.00818.10
8.1.170.0080.00018.47
8.1.160.0030.00518.69
8.1.150.0080.00018.61
8.1.140.0070.00017.37
8.1.130.0000.00717.70
8.1.120.0100.00017.36
8.1.110.0040.00417.41
8.1.100.0000.00717.28
8.1.90.0000.00717.25
8.1.80.0000.00717.44
8.1.70.0070.00017.41
8.1.60.0040.00417.57
8.1.50.0060.00317.42
8.1.40.0060.00317.48
8.1.30.0050.00217.55
8.1.20.0030.00517.61
8.1.10.0000.00817.55
8.1.00.0000.00817.34
8.0.300.0000.00819.94
8.0.290.0000.00717.18
8.0.280.0070.00018.44
8.0.270.0000.00817.17
8.0.260.0040.00416.82
8.0.250.0030.00316.98
8.0.240.0040.00416.92
8.0.230.0030.00316.91
8.0.220.0030.00316.86
8.0.210.0050.00316.85
8.0.200.0040.00416.88
8.0.190.0040.00416.75
8.0.180.0040.00416.85
8.0.170.0060.00316.84
8.0.160.0070.00016.78
8.0.150.0000.00716.73
8.0.140.0000.00716.70
8.0.130.0030.00313.23
8.0.120.0040.00416.77
8.0.110.0040.00416.82
8.0.100.0000.00716.68
8.0.90.0030.00316.77
8.0.80.0000.01816.82
8.0.70.0070.00016.64
8.0.60.0000.00716.85
8.0.50.0050.00316.71
8.0.30.0140.00516.94
8.0.20.0060.01317.40
8.0.10.0030.00516.90
8.0.00.0120.00716.93
7.4.330.0000.00416.84
7.4.320.0040.00416.55
7.4.300.0030.00316.55
7.4.290.0000.00716.46
7.4.280.0040.00416.34
7.4.270.0070.00016.34
7.4.260.0060.00013.17
7.4.250.0030.00516.36
7.4.240.0010.00616.40
7.4.230.0030.00316.33
7.4.220.0070.01116.56
7.4.210.0070.00916.45
7.4.200.0000.00716.39
7.4.190.0030.00316.52
7.4.160.0100.00716.48
7.4.150.0150.00317.40
7.4.140.0090.00717.86
7.4.130.0120.00816.44
7.4.120.0140.00616.53
7.4.110.0130.00316.65
7.4.100.0090.01316.44
7.4.90.0100.00616.52
7.4.80.0030.01519.39
7.4.70.0100.00616.44
7.4.60.0090.00916.46
7.4.50.0040.00416.35
7.4.40.0030.00922.77
7.4.30.0100.01316.50
7.4.00.0030.01314.82
7.3.330.0020.00213.04
7.3.320.0030.00313.09
7.3.310.0070.00016.16
7.3.300.0060.00016.21
7.3.290.0000.01416.14
7.3.280.0100.00616.22
7.3.270.0030.01317.40
7.3.260.0100.00818.24
7.3.250.0140.00816.34
7.3.240.0030.01316.54
7.3.230.0030.01316.39
7.3.210.0100.00616.35
7.3.200.0140.00619.39
7.3.190.0180.00316.13
7.3.180.0140.00716.39
7.3.170.0000.01716.27
7.3.160.0140.00416.18
7.3.120.0030.01115.02
7.3.00.0170.00815.68
7.2.330.0170.00316.50
7.2.320.0030.01416.46
7.2.310.0090.01316.66
7.2.300.0080.00816.37
7.2.290.0060.01116.55
7.2.130.0180.00515.77
7.2.120.0260.00815.65
7.2.110.0150.00815.89
7.2.100.0190.00515.83
7.2.90.0110.01015.87
7.2.80.0190.00715.60
7.2.70.0100.01015.60
7.2.60.0140.00515.79
7.2.50.0160.00815.83
7.2.40.0190.00215.87
7.2.30.0210.00315.74
7.2.20.0200.00815.91
7.2.10.0170.00715.92
7.2.00.0180.00515.98
7.1.250.0150.00914.62
7.1.240.0580.00514.90
7.1.230.0230.00814.80
7.1.220.0250.00614.68
7.1.210.0160.00814.70
7.1.200.0160.00814.73
7.1.190.0210.00314.83
7.1.180.0170.00614.93
7.1.170.0190.00614.69
7.1.160.0370.00314.74
7.1.150.0210.00814.68
7.1.140.0220.01014.84
7.1.130.0150.01314.66
7.1.120.0360.00914.92
7.1.110.0180.01014.88
7.1.100.0200.00814.93
7.1.90.0220.00514.86
7.1.80.0190.00914.78
7.1.70.0220.00315.53
7.1.60.0210.01016.16
7.1.50.0230.00415.48
7.1.40.0180.00914.90
7.1.30.0220.00714.71
7.1.20.0260.00514.78
7.1.10.0220.00514.74
7.1.00.0070.03517.33
7.0.330.0160.00914.11
7.0.320.0210.00414.29
7.0.310.0250.00314.13
7.0.300.0160.00914.42
7.0.290.0190.00514.54
7.0.280.0250.00914.30
7.0.270.0230.00714.52
7.0.260.0170.00714.37
7.0.250.0230.00714.48
7.0.240.0220.00614.50
7.0.230.0210.00614.42
7.0.220.0180.00514.42
7.0.210.0270.00614.38
7.0.200.0120.00815.12
7.0.190.0280.00714.29
7.0.180.0240.00614.46
7.0.170.0170.01214.58
7.0.160.0250.00514.29
7.0.150.0210.01114.50
7.0.140.0130.03316.96
7.0.130.0210.00714.42
7.0.120.0190.00514.54
7.0.110.0260.00714.44
7.0.100.0220.00614.48
7.0.90.0390.00714.36
7.0.80.0200.00614.44
7.0.70.0190.00614.29
7.0.60.0160.02916.24
7.0.50.0140.03215.54
7.0.40.0150.02415.64
7.0.30.0210.03015.49
7.0.20.0220.02815.77
7.0.10.0110.01915.60
7.0.00.0100.03315.72
5.6.380.0100.00414.09
5.6.370.0110.00714.09
5.6.360.0050.01014.05
5.6.350.0100.00714.11
5.6.340.0060.00914.31
5.6.330.0080.00614.32
5.6.320.0050.00814.29
5.6.310.0120.00514.34
5.6.300.0100.00514.23
5.6.290.0080.01014.17
5.6.280.0060.03016.45
5.6.270.0090.00914.12
5.6.260.0080.00613.94
5.6.250.0110.00513.98
5.6.240.0100.00514.14
5.6.230.0080.00914.16
5.6.220.0060.01014.28
5.6.210.0070.02316.36
5.6.200.0100.01415.38
5.6.190.0060.02616.24
5.6.180.0130.02316.26
5.6.170.0070.02116.23
5.6.160.0060.02616.21
5.6.150.0120.02815.36
5.6.140.0040.03215.56
5.6.130.0080.03215.62
5.6.120.0090.03316.52
5.6.110.0080.02616.32
5.6.100.0050.03516.45
5.6.90.0070.03116.48
5.6.80.0100.02916.26
5.6.70.1600.01716.26
5.6.60.0080.00814.04
5.6.50.0140.00214.04
5.6.40.0100.00414.18
5.6.30.0070.01113.91
5.6.20.0100.00314.22
5.6.10.0080.00514.13
5.6.00.0090.00514.05
5.5.380.0050.00511.03
5.5.370.0040.00910.89
5.5.360.0040.00710.72
5.5.350.0070.03014.04
5.5.340.0070.03113.21
5.5.330.0070.02314.09
5.5.320.0050.02514.12
5.5.310.0090.02214.09
5.5.300.0070.02413.22
5.5.290.0060.03013.24
5.5.280.0060.02614.36
5.5.270.0090.01214.25
5.5.260.0100.02514.31
5.5.250.0020.01914.13
5.5.240.0080.02413.99
5.5.230.0090.00310.91
5.5.220.0060.00410.86
5.5.210.0100.00210.83
5.5.200.0110.00310.81
5.5.190.0070.00610.96
5.5.180.0060.00310.99
5.5.170.0050.00510.97
5.5.160.0060.00410.97
5.5.150.0070.00510.81
5.5.140.0100.00210.86
5.5.130.0050.00510.94
5.5.120.0040.00511.02
5.5.110.0070.00210.99
5.5.100.0070.00510.91
5.5.90.0030.01010.95
5.5.80.0070.00610.90
5.5.70.0070.00510.87
5.5.60.0070.00710.80
5.5.50.0070.00410.92
5.5.40.0030.00910.91
5.5.30.0090.00410.85
5.5.20.0050.00510.83
5.5.10.0060.00610.93
5.5.00.0050.00710.92
5.4.450.0060.01613.76
5.4.440.0050.02913.79
5.4.430.0060.02313.67
5.4.420.0080.01313.66
5.4.410.0070.02613.65
5.4.400.0080.02313.56
5.4.390.0040.02913.67
5.4.380.0080.02613.66
5.4.370.0040.03013.51
5.4.360.0080.02313.54
5.4.350.0060.02813.59
5.4.340.0040.02013.64
5.4.330.0090.00310.79
5.4.320.0050.02813.58
5.4.310.0030.02713.54
5.4.300.0030.02813.61
5.4.290.0090.02413.54
5.4.280.0090.02313.56
5.4.270.0060.01513.56
5.4.260.0040.02313.60
5.4.250.0050.02713.49
5.4.240.0050.02713.64
5.4.230.0110.02313.48
5.4.220.0040.03113.57
5.4.210.0060.03013.66
5.4.200.0050.01613.57
5.4.190.0020.03013.61
5.4.180.0050.02813.64
5.4.170.0040.02913.52
5.4.160.0050.02013.57
5.4.150.0060.01713.53
5.4.140.0050.01712.86
5.4.130.0060.02712.68
5.4.120.0070.02712.68
5.4.110.0080.01912.63
5.4.100.0070.01512.63
5.4.90.0050.02712.66
5.4.80.0050.02312.68
5.4.70.0050.02612.61
5.4.60.0100.01812.70
5.4.50.0060.02612.62
5.4.40.0040.02812.78
5.4.30.0060.02412.54
5.4.20.0040.02212.71
5.4.10.0070.02812.72
5.4.00.0100.01412.44
5.3.290.0030.02912.36
5.3.280.0060.01712.31
5.3.270.0060.02412.33
5.3.260.0050.02712.32
5.3.250.0050.01712.30
5.3.240.0060.02712.27
5.3.230.0060.02812.26
5.3.220.0040.02112.22
5.3.210.0080.01612.28
5.3.200.0070.02612.22
5.3.190.0070.02512.24
5.3.180.0070.01912.34
5.3.170.0060.01712.34
5.3.160.0040.03012.28
5.3.150.0080.02012.28
5.3.140.0090.02812.33
5.3.130.0000.02212.29
5.3.120.0070.02512.30
5.3.110.0060.02212.32
5.3.100.0040.02812.31
5.3.90.0050.02912.31
5.3.80.0070.01612.28
5.3.70.0040.02512.27
5.3.60.0070.02612.33
5.3.50.0020.01912.27
5.3.40.0050.02012.28
5.3.30.0080.02612.30
5.3.20.0040.02812.33
5.3.10.0030.02012.23
5.3.00.0050.02512.18
5.2.170.0050.02111.93
5.2.160.0030.02312.01
5.2.150.0020.02512.01
5.2.140.0050.02211.99
5.2.130.0030.01911.96
5.2.120.0030.02112.01
5.2.110.0060.01411.93
5.2.100.0040.01612.00
5.2.90.0020.01611.96
5.2.80.0020.02311.94
5.2.70.0050.02311.97
5.2.60.0060.02011.93
5.2.50.0030.02411.96
5.2.40.0040.02212.00
5.2.30.0030.02111.91
5.2.20.0010.01711.89
5.2.10.0050.01611.91
5.2.00.0030.01711.86
5.1.60.0050.00911.86
5.1.50.0010.01711.86
5.1.40.0050.01311.86
5.1.30.0020.02311.86
5.1.20.0050.01711.86
5.1.10.0030.02011.86
5.1.00.0040.01511.86
5.0.50.0030.01611.86
5.0.40.0050.01411.86
5.0.30.0010.01711.86
5.0.20.0050.01011.86
5.0.10.0040.01511.86
5.0.00.0050.02011.86
4.4.90.0030.01211.86
4.4.80.0070.00811.86
4.4.70.0020.01211.86
4.4.60.0030.01111.86
4.4.50.0000.01111.86
4.4.40.0040.01511.86
4.4.30.0040.01011.86
4.4.20.0020.01211.86
4.4.10.0050.01111.86
4.4.00.0030.01911.86
4.3.110.0020.01211.86
4.3.100.0050.00711.86
4.3.90.0040.01311.86
4.3.80.0010.01811.86
4.3.70.0010.01511.86
4.3.60.0010.01511.86
4.3.50.0010.01611.86
4.3.40.0020.01911.86
4.3.30.0040.00811.86
4.3.20.0020.01411.86
4.3.10.0050.00911.86
4.3.00.0030.01211.86

preferences:
41.79 ms | 400 KiB | 5 Q