3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num = "0501234555"; $result = substr_replace($num,"*",0,5); echo $result;

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)
8.3.60.0120.00616.63
8.3.50.0170.00318.03
8.3.40.0120.00318.70
8.3.30.0110.00718.42
8.3.20.0040.00419.02
8.3.10.0000.00721.79
8.3.00.0080.00023.48
8.2.180.0190.00816.32
8.2.170.0040.01122.96
8.2.160.0070.01119.34
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0060.00321.18
8.2.120.0080.00026.35
8.2.110.0110.00722.27
8.2.100.0110.00017.89
8.2.90.0000.00719.22
8.2.80.0040.00417.97
8.2.70.0040.00417.80
8.2.60.0050.00517.93
8.2.50.0040.00418.10
8.2.40.0000.00819.38
8.2.30.0000.00719.24
8.2.20.0040.00418.11
8.2.10.0060.00319.81
8.2.00.0000.00719.39
8.1.280.0130.00325.92
8.1.270.0080.00020.26
8.1.260.0050.00226.35
8.1.250.0070.00028.09
8.1.240.0000.00922.52
8.1.230.0080.00318.87
8.1.220.0040.00417.78
8.1.210.0090.00018.77
8.1.200.0000.00917.11
8.1.190.0070.00417.22
8.1.180.0030.00518.10
8.1.170.0040.00418.86
8.1.160.0040.00418.86
8.1.150.0040.00418.88
8.1.140.0000.00717.66
8.1.130.0000.00718.93
8.1.120.0000.00717.43
8.1.110.0070.00017.33
8.1.100.0000.00717.39
8.1.90.0030.00317.39
8.1.80.0080.00017.38
8.1.70.0000.00717.39
8.1.60.0040.00717.52
8.1.50.0000.00817.34
8.1.40.0040.00417.44
8.1.30.0000.00917.45
8.1.20.0040.00817.57
8.1.10.0080.00017.52
8.1.00.0030.00517.50
8.0.300.0040.00418.84
8.0.290.0050.00316.63
8.0.280.0000.00718.34
8.0.270.0030.00717.14
8.0.260.0040.00717.18
8.0.250.0000.00716.86
8.0.240.0030.00516.95
8.0.230.0000.00816.86
8.0.220.0040.00416.81
8.0.210.0000.00716.72
8.0.200.0060.00016.92
8.0.190.0000.00716.78
8.0.180.0020.00516.73
8.0.170.0040.00516.73
8.0.160.0000.00816.73
8.0.150.0000.00716.80
8.0.140.0070.00016.78
8.0.130.0000.00513.28
8.0.120.0040.00416.89
8.0.110.0030.00516.79
8.0.100.0070.00016.75
8.0.90.0050.00316.61
8.0.80.0100.00816.77
8.0.70.0040.00416.73
8.0.60.0000.00716.88
8.0.50.0080.00016.88
8.0.30.0060.01217.02
8.0.20.0100.00917.40
8.0.10.0000.00716.98
8.0.00.0100.00716.53
7.4.330.0050.00015.55
7.4.320.0040.00416.45
7.4.300.0040.00416.52
7.4.290.0000.00716.45
7.4.280.0050.00316.50
7.4.270.0070.00416.45
7.4.260.0070.00316.34
7.4.250.0030.00316.38
7.4.240.0080.00016.55
7.4.230.0040.00416.62
7.4.220.0030.00516.51
7.4.210.0100.00516.50
7.4.200.0050.00216.26
7.4.160.0050.01016.53
7.4.140.0160.00217.86
7.4.130.0130.00916.50
7.4.120.0090.01116.38
7.4.110.0030.01316.33
7.4.100.0190.00316.46
7.4.90.0120.00916.39
7.4.80.0110.00719.39
7.4.70.0080.00816.49
7.4.60.0040.01416.31
7.4.50.0060.00916.41
7.4.40.0130.00316.56
7.4.00.0120.00614.77
7.3.330.0000.00512.93
7.3.320.0040.00412.99
7.3.310.0060.00016.33
7.3.300.0000.00616.22
7.3.290.0000.00716.21
7.3.280.0090.00716.21
7.3.260.0100.01016.29
7.3.240.0090.01016.31
7.3.230.0030.01316.37
7.3.210.0170.00016.34
7.3.200.0130.00316.57
7.3.190.0120.00416.55
7.3.180.0170.00016.26
7.3.170.0060.00916.49
7.3.160.0090.00916.41
7.2.330.0070.01416.38
7.2.320.0100.01116.28
7.2.310.0130.00516.39
7.2.300.0060.01016.61
7.2.290.0130.01216.40
7.2.110.0070.01016.64
7.2.70.0470.00915.20
7.2.60.0390.01014.55
7.2.50.1510.01014.85
7.2.40.0350.01614.97
7.2.30.0450.00615.04
7.2.20.0200.01614.92
7.2.10.0240.01314.89
7.2.00.0210.01414.63
7.1.200.0120.00315.70
7.1.170.0560.00313.71
7.1.160.0270.00713.92
7.1.150.0300.01013.91
7.1.140.0410.00013.77
7.1.130.0250.01113.90
7.1.120.0310.00314.04
7.1.110.0300.00313.91
7.1.100.0280.00613.82
7.1.90.0480.01013.79
7.1.80.0330.00313.83
7.1.70.0340.00913.80
7.1.60.0570.02231.67
7.1.50.0800.00731.86
7.1.40.0750.01931.53
7.1.30.0760.01331.86
7.1.20.0740.01631.52
7.1.10.0480.00713.51
7.1.00.0460.00613.83

preferences:
40.7 ms | 401 KiB | 5 Q