3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = '444 444 444'; $n = preg_replace('/\s/', '', $n); //echo $n . "\n"; $t = substr($n ,0, 2); echo $t;

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)
8.3.60.0140.00716.63
8.3.50.0090.01216.23
8.3.40.0140.00318.81
8.3.30.0070.00719.02
8.3.20.0030.01321.67
8.3.10.0090.00921.82
8.3.00.0000.00721.85
8.2.180.0130.00318.66
8.2.170.0090.00922.96
8.2.160.0100.00319.25
8.2.150.0090.00924.18
8.2.140.0120.00624.66
8.2.130.0000.00821.24
8.2.120.0070.01126.35
8.2.110.0070.01520.40
8.2.100.0040.00718.03
8.2.90.0060.00617.85
8.2.80.0040.00418.22
8.2.70.0080.00017.93
8.2.60.0040.00417.80
8.2.50.0040.00418.22
8.2.40.0060.00320.42
8.2.30.0000.00819.35
8.2.20.0000.00718.05
8.2.10.0040.00418.05
8.2.00.0070.00018.18
8.1.280.0120.00325.92
8.1.270.0050.00323.99
8.1.260.0000.00926.35
8.1.250.0040.00428.09
8.1.240.0060.00321.99
8.1.230.0080.00421.93
8.1.220.0040.00417.74
8.1.210.0080.00019.02
8.1.200.0000.00817.34
8.1.190.0030.00617.35
8.1.180.0000.00818.10
8.1.170.0040.00419.04
8.1.160.0040.00418.75
8.1.150.0000.00718.90
8.1.140.0060.00317.56
8.1.130.0090.00020.27
8.1.120.0030.00317.55
8.1.110.0070.00017.43
8.1.100.0040.00417.60
8.1.90.0040.00417.52
8.1.80.0040.00417.47
8.1.70.0000.00817.53
8.1.60.0030.00617.69
8.1.50.0040.00417.48
8.1.40.0020.01117.53
8.1.30.0000.00817.57
8.1.20.0040.00417.68
8.1.10.0000.00917.55
8.1.00.0060.00317.63
8.0.300.0000.00720.13
8.0.290.0070.00016.88
8.0.280.0000.00818.43
8.0.270.0040.00417.27
8.0.260.0070.00016.87
8.0.250.0070.00017.06
8.0.240.0030.00317.10
8.0.230.0070.00016.98
8.0.220.0000.00716.98
8.0.210.0030.00316.87
8.0.200.0030.00317.09
8.0.190.0080.00016.96
8.0.180.0000.00716.95
8.0.170.0090.00017.04
8.0.160.0040.00416.95
8.0.150.0060.00316.91
8.0.140.0030.00516.91
8.0.130.0000.00513.34
8.0.120.0040.00416.93
8.0.110.0000.00816.92
8.0.100.0050.00316.84
8.0.90.0000.00816.92
8.0.80.0030.01616.99
8.0.70.0080.00016.86
8.0.60.0040.00417.02
8.0.50.0050.00316.96
8.0.30.0110.00817.39
8.0.20.0130.00817.41
8.0.10.0050.00217.11
8.0.00.0070.01016.94
7.4.330.0000.00515.55
7.4.320.0000.00616.58
7.4.300.0030.00316.77
7.4.290.0070.00016.75
7.4.280.0000.00716.61
7.4.270.0040.00416.73
7.4.260.0000.00716.63
7.4.250.0000.00716.51
7.4.240.0000.00716.65
7.4.230.0030.00316.73
7.4.220.0040.00416.61
7.4.210.0090.00616.72
7.4.200.0040.00416.85
7.4.160.0080.01116.62
7.4.140.0110.01017.86
7.4.130.0110.00716.73
7.4.120.0120.01116.67
7.4.110.0100.00716.76
7.4.100.0100.01016.69
7.4.90.0100.00716.62
7.4.80.0090.00919.39
7.4.70.0100.00616.62
7.4.60.0060.00916.63
7.4.50.0000.01216.54
7.4.40.0090.00916.60
7.4.10.0070.00714.92
7.4.00.0080.00815.19
7.3.330.0050.00213.20
7.3.320.0020.00213.31
7.3.310.0070.00016.41
7.3.300.0040.00416.23
7.3.290.0030.00316.32
7.3.280.0140.00316.35
7.3.260.0140.00316.55
7.3.240.0070.01016.64
7.3.230.0130.00816.45
7.3.210.0120.00616.60
7.3.200.0060.01016.52
7.3.190.0030.01316.36
7.3.180.0100.00716.54
7.3.170.0110.00716.33
7.3.160.0100.00716.36
7.3.130.0030.01314.75
7.3.120.0090.00914.93
7.3.110.0070.01114.70
7.3.100.0030.01014.93
7.3.90.0070.00714.75
7.3.80.0000.00814.82
7.3.70.0070.00714.75
7.3.60.0110.00014.89
7.3.50.0090.00615.02
7.3.40.0040.00714.72
7.3.30.0040.01114.85
7.3.20.0120.00316.75
7.3.10.0030.00916.80
7.3.00.0110.00516.57
7.2.330.0040.01416.62
7.2.320.0110.00716.48
7.2.310.0110.00416.73
7.2.300.0130.00316.63
7.2.290.0070.01016.73
7.2.260.0060.00914.95
7.2.250.0040.01115.05
7.2.240.0080.00415.14
7.2.230.0040.01114.91
7.2.220.0180.00415.16
7.2.210.0110.00314.87
7.2.200.0080.00815.11
7.2.190.0140.00415.00
7.2.180.0090.00615.12
7.2.170.0110.00414.92
7.2.160.0080.00815.18
7.2.150.0030.00717.24
7.2.140.0050.00517.03
7.2.130.0090.00616.78
7.2.120.0060.00517.05
7.2.110.0120.00816.83
7.2.100.0080.00817.03
7.2.90.0150.00516.71
7.2.80.0060.00816.79
7.2.70.0050.01117.03
7.2.60.0100.00917.07
7.2.50.0060.00717.01
7.2.40.0480.01017.33
7.2.30.0280.00817.36
7.2.20.0420.00917.30
7.2.10.0540.00817.35
7.2.00.0430.00817.28
7.1.330.0000.01315.97
7.1.320.0030.01416.00
7.1.310.0000.01416.20
7.1.300.0030.01015.91
7.1.290.0000.01416.04
7.1.280.0030.01015.97
7.1.270.0090.00615.91
7.1.260.0090.00316.01
7.1.250.0050.00815.91
7.1.240.0040.01215.90
7.1.230.0030.00915.94
7.1.220.0100.00316.10
7.1.210.0000.01116.11
7.1.200.0060.00616.02
7.1.190.0000.00915.67
7.1.180.0030.00915.66
7.1.170.0030.00916.04
7.1.160.0490.01016.50
7.1.150.0550.00816.43
7.1.140.0440.01016.51
7.1.130.0420.01216.42
7.1.120.0660.00616.56
7.1.110.0480.01315.96
7.1.100.0700.00715.90
7.1.90.0470.00816.03
7.1.80.0060.01216.08
7.1.70.0070.00715.69
7.1.60.0420.00824.56
7.1.50.0220.00924.56
7.1.40.0180.01124.37
7.1.30.0270.01024.24
7.1.20.0870.01124.25
7.1.10.0060.00615.41
7.1.00.0090.01115.52
7.0.330.0030.01015.79
7.0.320.0040.01115.61
7.0.310.0070.00715.53
7.0.300.0060.00615.64
7.0.290.0000.01315.57
7.0.280.0060.00915.57
7.0.270.0100.00315.67
7.0.260.0000.01315.54
7.0.250.0050.00315.84
7.0.240.0000.00815.78
7.0.230.0070.00315.63
7.0.220.0030.01015.76
7.0.210.0100.00315.52
7.0.200.0030.01015.70
7.0.190.0090.00615.67
7.0.180.0070.01015.52
7.0.170.0080.00015.57
7.0.160.0060.00615.66
7.0.150.0070.00715.60
7.0.140.0100.00315.70
7.0.130.0090.00615.42
7.0.120.0080.00415.43
7.0.110.0000.01115.25
7.0.100.0030.01015.45
7.0.90.0110.00415.46
7.0.80.0070.00715.66
7.0.70.0060.00315.72
7.0.60.0090.00615.62
7.0.50.0080.00015.88
7.0.40.0030.00613.38
7.0.30.0100.00313.70
7.0.20.0070.00713.71
7.0.10.0030.00613.33
7.0.00.0110.00013.78
5.6.400.0030.00714.10
5.6.390.0030.01013.95
5.6.380.0060.00914.39
5.6.370.0070.00414.17
5.6.360.0060.00614.33
5.6.350.0090.00614.20
5.6.340.0120.00314.42
5.6.330.0030.00513.84
5.6.320.0070.01014.36
5.6.310.0040.00414.49
5.6.300.0120.00014.61
5.6.290.0060.00614.57
5.6.280.0000.00914.24
5.6.270.0000.01114.70
5.6.260.0030.01214.51
5.6.250.0070.00714.41
5.6.240.0030.01014.64
5.6.230.0080.00314.36
5.6.220.0000.01314.21
5.6.210.0030.01014.20
5.6.200.0040.01114.28
5.6.190.0030.01014.39
5.6.180.0090.00014.52
5.6.170.0030.00914.25
5.6.160.0070.01014.42
5.6.150.0080.00814.27
5.6.140.0040.01114.09
5.6.130.0060.00614.38
5.6.120.0030.01214.35
5.6.110.0030.01214.00
5.6.100.0110.00314.51
5.6.90.0000.01314.26
5.6.80.0120.00314.23
5.6.70.0100.00314.12
5.6.60.0030.00914.32
5.6.50.0070.00714.14
5.6.40.0090.00614.15
5.6.30.0040.00414.17
5.6.20.0080.00814.52
5.6.10.0120.00314.11
5.6.00.0040.01114.36

preferences:
55.98 ms | 401 KiB | 5 Q