3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr_count("Hello world. The world is nice","?");

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)
8.3.60.0180.00018.15
8.3.50.0110.00416.46
8.3.40.0110.00418.49
8.3.30.0060.00818.68
8.3.20.0070.00020.14
8.3.10.0080.00023.69
8.3.00.0080.00019.66
8.2.180.0150.00316.32
8.2.170.0120.00622.96
8.2.160.0110.00418.95
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0000.00821.04
8.2.120.0080.00026.35
8.2.110.0090.00320.35
8.2.100.0090.00317.84
8.2.90.0050.00319.03
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0000.01017.80
8.2.50.0030.00618.10
8.2.40.0070.00020.47
8.2.30.0050.00219.16
8.2.20.0040.00417.89
8.2.10.0040.00417.99
8.2.00.0040.00417.83
8.1.280.0140.00325.92
8.1.270.0030.00322.06
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00020.88
8.1.230.0110.00019.14
8.1.220.0060.00317.77
8.1.210.0040.00418.77
8.1.200.0070.00317.35
8.1.190.0040.00417.10
8.1.180.0060.00318.10
8.1.170.0080.00020.17
8.1.160.0000.00818.93
8.1.150.0040.00420.66
8.1.140.0030.00619.43
8.1.130.0070.00018.66
8.1.120.0050.00217.39
8.1.110.0000.00817.28
8.1.100.0000.00717.23
8.1.90.0000.00817.23
8.1.80.0040.00417.30
8.1.70.0030.00517.21
8.1.60.0040.00417.40
8.1.50.0050.00217.30
8.1.40.0060.00317.25
8.1.30.0050.00217.52
8.1.20.0040.00417.40
8.1.10.0040.00417.34
8.1.00.0020.00517.29
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.33
8.0.270.0070.00017.11
8.0.260.0030.00316.75
8.0.250.0040.00416.75
8.0.240.0040.00416.85
8.0.230.0030.00316.87
8.0.220.0060.00016.77
8.0.210.0030.00516.72
8.0.200.0070.00016.77
8.0.190.0000.00916.77
8.0.180.0000.00716.74
8.0.170.0030.00316.73
8.0.160.0030.00416.79
8.0.150.0040.00416.65
8.0.140.0000.00716.58
8.0.130.0050.00013.18
8.0.120.0080.00016.73
8.0.110.0030.00316.75
8.0.100.0040.00416.84
8.0.90.0040.00416.82
8.0.80.0080.00816.64
8.0.70.0050.00316.65
8.0.60.0000.00716.64
8.0.50.0040.00416.56
8.0.30.0130.00217.08
8.0.20.0080.01217.40
8.0.10.0070.00016.87
8.0.00.0100.00716.59
7.4.330.0050.00015.55
7.4.320.0000.00616.36
7.4.300.0000.00616.37
7.4.290.0000.00716.25
7.4.280.0000.00816.45
7.4.270.0070.00016.39
7.4.260.0060.00016.28
7.4.250.0040.00416.31
7.4.240.0030.00616.50
7.4.230.0030.00316.55
7.4.220.0100.00716.54
7.4.210.0120.00616.56
7.4.200.0070.00016.44
7.4.160.0090.00716.21
7.4.150.0200.00717.40
7.4.140.0050.01217.86
7.4.130.0100.01316.46
7.4.120.0100.01016.29
7.4.110.0100.00616.40
7.4.100.0060.01316.38
7.4.90.0130.00316.39
7.4.80.0110.00719.39
7.4.70.0120.00416.34
7.4.60.0070.01116.42
7.4.50.0040.00716.28
7.4.40.0100.00716.38
7.4.30.0100.01316.30
7.4.00.0070.00414.50
7.3.330.0020.00212.88
7.3.320.0030.00312.92
7.3.310.0070.00015.91
7.3.300.0030.00416.16
7.3.290.0050.01016.13
7.3.280.0100.00716.12
7.3.270.0080.00917.40
7.3.260.0100.00716.28
7.3.250.0080.00916.27
7.3.240.0090.00816.32
7.3.230.0070.01516.17
7.3.210.0060.01016.18
7.3.200.0100.00616.51
7.3.190.0040.01216.49
7.3.180.0040.01116.15
7.3.170.0120.00316.26
7.3.160.0070.00916.32
7.2.330.0090.01516.45
7.2.320.0140.00316.28
7.2.310.0030.01316.57
7.2.300.0030.01316.31
7.2.290.0100.00616.48
7.2.60.0870.00814.77
7.2.00.0060.00919.10
7.1.200.0060.00015.74
7.1.100.0060.00617.96
7.1.70.0270.00314.94
7.1.60.0340.01333.20
7.1.50.0350.01332.52
7.1.40.0400.01732.38
7.1.30.0380.02132.48
7.1.20.0450.01332.63
7.1.10.0220.01114.58
7.1.00.0240.01514.62
7.0.200.0160.00814.91
7.0.190.0150.01514.71
7.0.180.0270.00514.15
7.0.170.0240.00914.31
7.0.160.0140.01414.18
7.0.150.0200.01414.31
7.0.140.0160.01214.25
7.0.130.0480.00614.63
7.0.120.1400.01714.66
7.0.110.0270.01114.56
7.0.100.0260.01014.52
7.0.90.0210.01314.09
7.0.80.0350.00814.52
7.0.70.0250.00814.24
7.0.60.0250.01214.02
7.0.50.0130.01614.57
7.0.40.0190.00714.46
7.0.30.0180.01414.50
7.0.20.0190.01914.52
7.0.10.0310.00314.48
7.0.00.0220.01314.64

preferences:
41.36 ms | 401 KiB | 5 Q