3v4l.org

run code in 300+ PHP versions simultaneously
<!DOCTYPE html> <html> <body> <?php echo substr_replace("Hello","world",0,0); // 0 will start replacing at the first character in the string ?> </body> </html>

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)
8.3.60.0100.01018.18
8.3.50.0100.00817.21
8.3.40.0040.01118.82
8.3.30.0060.00918.45
8.3.20.0000.00718.59
8.3.10.0040.00418.70
8.3.00.0050.00319.13
8.2.180.0160.00616.38
8.2.170.0030.01722.96
8.2.160.0090.00618.71
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00926.16
8.2.120.0030.00619.67
8.2.110.0000.00920.94
8.2.100.0070.00717.59
8.2.90.0030.00519.09
8.2.80.0050.00317.97
8.2.70.0050.00317.63
8.2.60.0080.00017.93
8.2.50.0050.00318.07
8.2.40.0040.00419.25
8.2.30.0040.00417.61
8.2.20.0000.00817.71
8.2.10.0040.00417.61
8.2.00.0080.00017.42
8.1.280.0120.00325.92
8.1.270.0050.00323.99
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0090.00020.86
8.1.230.0080.00322.12
8.1.220.0050.00517.74
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0050.00317.11
8.1.180.0040.00418.10
8.1.170.0050.00318.57
8.1.160.0000.00818.93
8.1.150.0000.00718.55
8.1.140.0040.00417.31
8.1.130.0040.00417.18
8.1.120.0000.00717.27
8.1.110.0040.00417.30
8.1.100.0000.00717.37
8.1.90.0000.00717.20
8.1.80.0000.00817.29
8.1.70.0030.00317.29
8.1.60.0040.00417.40
8.1.50.0000.00817.26
8.1.40.0080.00017.29
8.1.30.0000.00717.50
8.1.20.0060.00317.38
8.1.10.0000.00717.34
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0080.00016.58
8.0.280.0030.00318.55
8.0.270.0030.00317.21
8.0.260.0000.00616.66
8.0.250.0070.00316.83
8.0.240.0040.00416.76
8.0.230.0080.00016.75
8.0.220.0000.00916.73
8.0.210.0040.00416.71
8.0.200.0000.00816.72
8.0.190.0030.00616.86
8.0.180.0050.00316.73
8.0.170.0040.00416.63
8.0.160.0040.00416.73
8.0.150.0080.00016.64
8.0.140.0030.00816.60
8.0.130.0000.00613.14
8.0.120.0040.00716.63
8.0.110.0040.00416.64
8.0.100.0040.00416.80
8.0.90.0030.00316.63
8.0.80.0120.00316.73
8.0.70.0040.00416.71
8.0.60.0030.00616.80
8.0.50.0080.00016.81
8.0.30.0100.00716.95
8.0.20.0110.00816.95
8.0.10.0050.00216.94
8.0.00.0110.00716.64
7.4.330.0050.00012.79
7.4.320.0030.00316.38
7.4.300.0070.00016.47
7.4.290.0060.00316.37
7.4.280.0080.00016.44
7.4.270.0050.00316.44
7.4.260.0000.00513.03
7.4.250.0000.00916.43
7.4.240.0070.00016.27
7.4.230.0030.00316.39
7.4.220.0130.00316.30
7.4.210.0070.00716.49
7.4.200.0030.00316.36
7.4.190.0000.00716.27
7.4.160.0050.01116.50
7.4.150.0110.00716.24
7.4.140.0090.00917.86
7.4.130.0100.01016.43
7.4.120.0100.00716.64
7.4.110.0120.00616.55
7.4.100.0120.00816.47
7.4.90.0140.00416.33
7.4.80.0060.01219.39
7.4.70.0070.01016.28
7.4.60.0160.00816.36
7.4.50.0060.00316.29
7.4.40.0120.00316.45
7.4.30.0160.00016.29
7.4.00.0040.01114.54
7.3.330.0000.00712.86
7.3.320.0000.00713.01
7.3.310.0070.00016.04
7.3.300.0070.00016.02
7.3.290.0090.00816.11
7.3.280.0120.00416.02
7.3.270.0120.00416.09
7.3.260.0090.00916.50
7.3.240.0100.00716.18
7.3.230.0170.00016.18
7.3.210.0120.00916.47
7.3.200.0080.00816.09
7.3.190.0030.01216.22
7.3.180.0110.01216.27
7.3.170.0110.00816.43
7.3.160.0000.01616.15
7.3.120.0030.01314.92
7.2.330.0130.00416.25
7.2.320.0160.00616.55
7.2.310.0040.01916.52
7.2.300.0080.00816.54
7.2.290.0120.00716.25
7.2.00.0100.00619.28
7.1.70.0080.00316.73
7.1.60.0100.01419.21
7.1.50.0070.01416.75
7.1.00.0000.07722.35
7.0.200.0080.00016.74
7.0.140.0030.07322.11
7.0.120.0000.07322.00
7.0.60.0230.07321.90
7.0.50.0030.05017.80
7.0.40.0100.04017.69
7.0.30.0170.07317.76
7.0.20.0170.07317.71
7.0.10.0030.04717.67
7.0.00.0200.02717.79
5.6.280.0030.07321.13
5.6.210.0000.04320.72
5.6.200.0030.04318.12
5.6.190.0100.07718.12
5.6.180.0070.04318.11
5.6.170.0130.04018.18
5.6.160.0130.03318.11
5.6.150.0030.04018.15
5.6.140.0030.08718.18
5.6.130.0070.05018.11
5.6.120.0000.05318.15
5.6.110.0070.04318.11
5.6.100.0070.08318.06
5.6.90.0130.08018.20
5.6.80.0070.07317.50
5.6.70.0130.05717.60
5.6.60.0070.03717.59
5.6.50.0130.07017.50
5.6.40.0070.05017.52
5.6.30.0030.05317.53
5.6.20.0070.06017.46
5.6.10.0000.05017.48
5.6.00.0030.06317.52
5.5.350.0070.07720.37
5.5.340.0030.08317.93
5.5.330.0030.06317.95
5.5.320.0100.03318.04
5.5.310.0070.05317.98
5.5.300.0070.07717.91
5.5.290.0070.04717.87
5.5.280.0100.04018.02
5.5.270.0030.05017.94
5.5.260.0030.07317.88
5.5.250.0030.04317.71
5.5.240.0070.07317.37
5.5.230.0030.05017.40
5.5.220.0030.08017.35
5.5.210.0100.06717.30
5.5.200.0030.05717.37
5.5.190.0100.04717.37
5.5.180.0030.04017.26
5.5.160.0030.08017.27
5.5.150.0100.04717.36
5.5.140.0030.04717.27
5.5.130.0070.07317.33
5.5.120.0170.06717.22
5.5.110.0170.06017.23
5.5.100.0030.04717.23
5.5.90.0130.07317.21
5.5.80.0130.06317.21
5.5.70.0130.04017.13
5.5.60.0130.06017.20
5.5.50.0100.07317.13
5.5.40.0030.07717.20
5.5.30.0070.04017.22
5.5.20.0130.07017.12
5.5.10.0070.06017.19
5.5.00.0100.06717.24
5.4.450.0030.06019.32
5.4.440.0030.05319.45
5.4.430.0170.07019.30
5.4.420.0030.05719.14
5.4.410.0030.08019.18
5.4.400.0100.07719.13
5.4.390.0000.06319.06
5.4.380.0070.04018.91
5.4.370.0070.07318.98
5.4.360.0000.08319.03
5.4.350.0130.06719.07
5.4.340.0030.05319.13
5.4.320.0130.04018.84
5.4.310.0130.07019.03
5.4.300.0100.04719.01
5.4.290.0100.03318.97
5.4.280.0070.05019.03
5.4.270.0070.07319.07
5.4.260.0070.07318.98
5.4.250.0030.04018.83
5.4.240.0070.06319.02
5.4.230.0100.07019.08
5.4.220.0070.06318.95
5.4.210.0030.05018.98
5.4.200.0070.07018.96
5.4.190.0070.05018.88
5.4.180.0170.07018.98
5.4.170.0070.05019.05
5.4.160.0070.08018.95
5.4.150.0170.06718.99
5.4.140.0070.07316.36
5.4.130.0030.06716.23
5.4.120.0030.03716.27
5.4.110.0070.07716.25
5.4.100.0000.07716.28
5.4.90.0200.06016.43
5.4.80.0130.06716.24
5.4.70.0100.05716.39
5.4.60.0170.06716.25
5.4.50.0030.05016.34
5.4.40.0000.08016.30
5.4.30.0030.07316.25
5.4.20.0130.06016.26
5.4.10.0070.07016.18
5.4.00.0000.04015.70
5.3.290.0070.04014.64
5.3.280.0030.05014.37
5.3.270.0100.07714.59
5.3.260.0130.06014.53
5.3.250.0070.05314.68
5.3.240.0070.05314.38
5.3.230.0000.04014.56
5.3.220.0070.07014.52
5.3.210.0130.07314.49
5.3.200.0170.05714.55
5.3.190.0100.08014.64
5.3.180.0070.06014.64
5.3.170.0000.06314.52
5.3.160.0070.07314.53
5.3.150.0100.07014.41
5.3.140.0070.07314.47
5.3.130.0030.05714.46
5.3.120.0130.06714.50
5.3.110.0030.06714.51
5.3.100.0070.08013.89
5.3.90.0000.04013.86
5.3.80.0070.07313.93
5.3.70.0030.06713.75
5.3.60.0070.07013.91
5.3.50.0070.07713.89
5.3.40.0070.06013.70
5.3.30.0070.06713.88
5.3.20.0100.07013.63
5.3.10.0100.05013.41
5.3.00.0100.05713.54
5.2.170.0030.06311.13
5.2.160.0070.06311.04
5.2.150.0100.05011.04
5.2.140.0070.05011.14
5.2.130.0030.03711.04
5.2.120.0100.05311.11
5.2.110.0100.03310.87
5.2.100.0070.05310.91
5.2.90.0130.05311.05
5.2.80.0100.04711.01
5.2.70.0070.04711.06
5.2.60.0000.05711.02
5.2.50.0070.04711.01
5.2.40.0030.05711.02
5.2.30.0100.04310.74
5.2.20.0000.06010.92
5.2.10.0030.06010.88
5.2.00.0000.06310.73
5.1.60.0030.05310.02
5.1.50.0030.0579.93
5.1.40.0000.05710.02
5.1.30.0030.06010.27
5.1.20.0070.05010.38
5.1.10.0070.05710.09
5.1.00.0070.03710.02
5.0.50.0100.0409.45
5.0.40.0000.0479.45
5.0.30.0070.0539.45
5.0.20.0070.0409.45
5.0.10.0030.0409.45
5.0.00.0000.0679.45
4.4.90.0000.0209.45
4.4.80.0070.0309.45
4.4.70.0000.0379.45
4.4.60.0000.0379.45
4.4.50.0030.0279.45
4.4.40.0070.0509.45
4.4.30.0070.0339.45
4.4.20.0000.0409.45
4.4.10.0000.0379.45
4.4.00.0000.0609.45
4.3.110.0100.0209.45
4.3.100.0030.0309.45
4.3.90.0130.0209.45
4.3.80.0030.0509.45
4.3.70.0000.0279.45
4.3.60.0000.0239.45
4.3.50.0000.0179.45
4.3.40.0100.0279.45
4.3.30.0070.0179.45
4.3.20.0030.0239.45
4.3.10.0030.0339.45
4.3.00.0030.0239.45

preferences:
54.73 ms | 401 KiB | 5 Q