3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr("this string is very very very long", 0, 24)); var_dump(substr("this is a short string", 0, 24));

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)
8.3.60.0140.00716.61
8.3.50.0130.00822.01
8.3.40.0170.00318.58
8.3.30.0110.00318.94
8.3.20.0040.00420.39
8.3.10.0030.00521.85
8.3.00.0080.00019.13
8.2.180.0120.00317.90
8.2.170.0070.00722.96
8.2.160.0070.00720.22
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00819.54
8.2.110.0000.00920.47
8.2.100.0130.00017.38
8.2.90.0040.00418.88
8.2.80.0030.00617.97
8.2.70.0060.00317.50
8.2.60.0000.00917.68
8.2.50.0100.00018.07
8.2.40.0050.00319.75
8.2.30.0000.00718.00
8.2.20.0040.00417.62
8.2.10.0000.00817.87
8.2.00.0000.00717.55
8.1.280.0130.00725.92
8.1.270.0080.00020.46
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0060.00323.89
8.1.230.0090.00318.78
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.11
8.1.190.0030.00517.00
8.1.180.0000.00718.10
8.1.170.0060.00318.37
8.1.160.0000.00721.96
8.1.150.0080.00018.88
8.1.140.0050.00217.32
8.1.130.0000.00717.77
8.1.120.0030.00317.38
8.1.110.0040.00417.21
8.1.100.0000.00717.22
8.1.90.0000.00917.23
8.1.80.0000.00717.20
8.1.70.0040.00417.22
8.1.60.0090.00017.34
8.1.50.0040.00417.41
8.1.40.0040.00417.29
8.1.30.0030.00517.39
8.1.20.0000.00717.51
8.1.10.0000.00817.38
8.1.00.0050.00217.30
8.0.300.0040.00418.77
8.0.290.0000.00716.58
8.0.280.0030.00318.22
8.0.270.0030.00317.21
8.0.260.0070.00017.13
8.0.250.0030.00316.88
8.0.240.0000.00716.72
8.0.230.0000.00716.76
8.0.220.0000.00816.79
8.0.210.0080.00016.75
8.0.200.0060.00016.77
8.0.190.0000.00716.81
8.0.180.0040.00416.74
8.0.170.0030.00616.70
8.0.160.0000.00716.67
8.0.150.0080.00016.62
8.0.140.0000.00716.76
8.0.130.0030.00513.25
8.0.120.0000.00816.76
8.0.110.0000.00716.69
8.0.100.0000.00716.75
8.0.90.0040.00416.64
8.0.80.0060.01016.71
8.0.70.0000.00716.88
8.0.60.0000.00716.81
8.0.50.0050.00216.72
8.0.30.0100.01216.79
8.0.20.0140.00517.40
8.0.10.0070.00016.88
8.0.00.0060.01216.58
7.4.330.0030.00315.03
7.4.320.0000.00716.46
7.4.300.0030.00716.43
7.4.290.0070.00016.43
7.4.280.0000.00816.49
7.4.270.0070.00016.40
7.4.260.0000.00716.29
7.4.250.0030.00316.35
7.4.240.0050.00216.47
7.4.230.0000.00716.49
7.4.220.0120.00616.34
7.4.210.0080.00716.40
7.4.200.0000.00816.26
7.4.160.0100.00716.31
7.4.150.0070.01117.40
7.4.140.0030.01717.86
7.4.130.0130.00716.35
7.4.120.0080.00816.47
7.4.110.0090.01316.40
7.4.100.0060.01116.40
7.4.90.0100.00716.23
7.4.80.0110.01319.39
7.4.70.0140.00316.23
7.4.60.0070.01016.21
7.4.50.0040.00416.44
7.4.40.0100.01016.33
7.4.30.0100.00716.37
7.4.00.0030.01414.77
7.3.330.0030.00312.98
7.3.320.0110.00412.98
7.3.310.0000.00716.11
7.3.300.0040.00416.13
7.3.290.0040.00416.14
7.3.280.0100.00816.10
7.3.270.0120.00617.40
7.3.260.0100.00616.38
7.3.250.0050.01216.14
7.3.240.0060.01616.39
7.3.230.0160.00616.39
7.3.210.0080.01016.19
7.3.200.0090.00919.39
7.3.190.0060.00916.51
7.3.180.0130.00716.41
7.3.170.0130.00316.27
7.3.160.0070.00716.21
7.2.330.0070.01016.22
7.2.320.0210.01116.46
7.2.310.0130.00316.47
7.2.300.0090.00916.41
7.2.290.0030.01416.40
7.2.60.0160.00016.79
7.2.00.0080.00419.33
7.1.200.0070.00715.77
7.1.100.0030.00917.85
7.1.70.0140.00416.74
7.1.60.0130.01019.46
7.1.50.0040.00716.83
7.1.00.0070.07322.33
7.0.200.0000.00716.62
7.0.140.0000.07322.04
7.0.110.0070.09319.93
7.0.100.0100.08320.04
7.0.90.0230.07320.02
7.0.80.0170.07719.89
7.0.70.0200.07320.04
7.0.60.0130.04720.00
7.0.50.0170.08019.93
7.0.40.0070.08019.79
7.0.30.0070.08019.80
7.0.20.0170.06319.84
7.0.10.0100.05719.70
7.0.00.0000.09019.64
5.6.280.0100.06721.12
5.6.260.0030.08020.58
5.6.250.0230.07020.64
5.6.240.0230.06720.63
5.6.230.0100.08720.62
5.6.220.0170.07320.64
5.6.210.0070.08020.71
5.6.200.0100.06020.62
5.6.190.0030.08020.64
5.6.180.0230.06320.64
5.6.170.0100.07020.60
5.6.160.0100.06720.46
5.6.150.0070.05720.55
5.6.140.0070.06720.61
5.6.130.0130.05320.60
5.6.120.0070.08020.51
5.6.110.0070.08020.60
5.6.100.0200.07320.54
5.6.90.0100.08020.65
5.6.80.0070.08320.07
5.6.70.0200.07019.98
5.6.60.0030.06020.00
5.6.50.0070.07720.00
5.6.40.0100.07719.83
5.6.30.0170.06019.94
5.6.20.0070.07720.20
5.6.10.0070.07720.00
5.6.00.0230.06719.97
5.5.380.0130.07017.63
5.5.370.0000.05717.63
5.5.360.0070.08017.43
5.5.350.0070.07717.47
5.5.340.0070.08018.01
5.5.330.0070.08717.99
5.5.320.0030.07718.13
5.5.310.0030.08317.86
5.5.300.0070.05318.02
5.5.290.0100.05718.16
5.5.280.0170.07017.98
5.5.270.0030.08318.09
5.5.260.0100.06318.11
5.5.250.0130.06717.69
5.5.240.0000.04717.55
5.5.230.0100.04317.27
5.5.220.0030.07717.18
5.5.210.0170.06317.40
5.5.200.0000.08717.38
5.5.190.0170.07017.45
5.5.180.0170.07317.44
5.5.160.0030.06717.20
5.5.150.0070.08017.21
5.5.140.0100.07317.46
5.5.130.0070.06717.44
5.5.120.0100.06717.47
5.5.110.0100.06317.46
5.5.100.0100.07017.10
5.5.90.0100.07317.15
5.5.80.0070.07717.28
5.5.70.0070.07717.40
5.5.60.0070.07717.01
5.5.50.0100.06317.40
5.5.40.0130.07017.10
5.5.30.0130.06017.42
5.5.20.0130.07317.33
5.5.10.0070.06717.10
5.5.00.0070.08017.24
5.4.450.0070.03719.46
5.4.440.0030.08319.27
5.4.430.0070.03719.59
5.4.420.0170.07319.44
5.4.410.0100.07019.22
5.4.400.0030.08019.08
5.4.390.0000.08719.00
5.4.380.0100.07318.93
5.4.370.0030.07718.93
5.4.360.0070.07019.01
5.4.350.0100.07719.01
5.4.340.0030.08019.02
5.4.320.0030.07319.10
5.4.310.0070.05719.11
5.4.300.0170.06318.96
5.4.290.0100.07719.11
5.4.280.0170.05719.27
5.4.270.0100.07019.02
5.4.260.0070.04319.07
5.4.250.0070.07319.00
5.4.240.0000.08019.02
5.4.230.0070.08019.26
5.4.220.0100.07719.15
5.4.210.0000.08019.02
5.4.200.0070.07719.17
5.4.190.0100.05718.97
5.4.180.0070.07719.26
5.4.170.0100.07319.11
5.4.160.0130.06719.08
5.4.150.0100.07318.98
5.4.140.0070.06316.23
5.4.130.0200.05316.21
5.4.120.0100.06716.36
5.4.110.0030.05316.41
5.4.100.0100.07316.54
5.4.90.0100.07316.55
5.4.80.0030.07316.47
5.4.70.0000.08016.46
5.4.60.0030.07316.26
5.4.50.0030.07716.21
5.4.40.0030.08016.40
5.4.30.0030.07316.46
5.4.20.0030.07316.35
5.4.10.0070.07716.15
5.4.00.0100.07015.64
5.3.290.0100.07314.54
5.3.280.0170.06714.38
5.3.270.0070.07014.70
5.3.260.0130.06714.46
5.3.250.0100.06714.46
5.3.240.0000.06314.66
5.3.230.0130.07014.66
5.3.220.0100.06014.68
5.3.210.0030.07714.50
5.3.200.0100.05014.55
5.3.190.0030.06714.49
5.3.180.0100.07014.38
5.3.170.0130.06314.46
5.3.160.0070.07314.45
5.3.150.0070.06314.35
5.3.140.0070.07314.34
5.3.130.0100.06714.48
5.3.120.0100.07714.44
5.3.110.0000.08014.42
5.3.100.0100.07013.95
5.3.90.0170.06713.80
5.3.80.0030.06713.88
5.3.70.0100.07313.95
5.3.60.0070.07314.09
5.3.50.0070.06713.88
5.3.40.0070.08013.84
5.3.30.0000.08313.79
5.3.20.0000.08313.70
5.3.10.0100.06713.59
5.3.00.0030.08013.57
5.2.170.0030.03011.15
5.2.160.0000.06711.11
5.2.150.0030.06311.15
5.2.140.0100.05711.05
5.2.130.0070.06310.97
5.2.120.0030.04711.00
5.2.110.0130.05311.08
5.2.100.0100.05011.02
5.2.90.0070.06311.17
5.2.80.0070.06011.11
5.2.70.0100.05311.11
5.2.60.0030.06311.12
5.2.50.0070.05011.08
5.2.40.0000.06710.88
5.2.30.0000.06310.98
5.2.20.0070.06010.95
5.2.10.0130.05310.85
5.2.00.0030.05310.62
5.1.60.0030.0579.95
5.1.50.0070.0539.93
5.1.40.0030.05310.02
5.1.30.0000.06010.32
5.1.20.0070.05310.47
5.1.10.0030.0579.89
5.1.00.0000.05710.31
5.0.50.0100.0378.48
5.0.40.0030.0238.34
5.0.30.0000.0578.19
5.0.20.0030.0478.25
5.0.10.0030.0338.16
5.0.00.0000.0638.23
4.4.90.0000.0277.04
4.4.80.0070.0337.04
4.4.70.0000.0407.04
4.4.60.0000.0307.04
4.4.50.0000.0407.04
4.4.40.0030.0537.04
4.4.30.0070.0307.04
4.4.20.0000.0407.04
4.4.10.0100.0277.04
4.4.00.0000.0577.04
4.3.110.0030.0377.04
4.3.100.0000.0407.04
4.3.90.0000.0337.04
4.3.80.0000.0407.04
4.3.70.0000.0377.04
4.3.60.0000.0337.04
4.3.50.0000.0377.04
4.3.40.0000.0407.04
4.3.30.0000.0337.04
4.3.20.0000.0377.04
4.3.10.0000.0237.04
4.3.00.0070.0237.04

preferences:
41.4 ms | 401 KiB | 5 Q