3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a ="+53534534535"; $rest = substr($a, 0, 4); echo $rest;

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)
8.3.40.0170.00018.71
8.3.30.0150.00618.41
8.3.20.0050.00318.52
8.3.10.0040.00420.39
8.3.00.0030.00619.26
8.2.170.0060.01322.96
8.2.160.0130.00321.19
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00320.83
8.2.110.0030.00622.11
8.2.100.0080.00417.91
8.2.90.0040.00419.26
8.2.80.0030.00518.04
8.2.70.0040.00417.63
8.2.60.0060.00617.55
8.2.50.0040.00418.10
8.2.40.0000.00720.47
8.2.30.0040.00419.26
8.2.20.0040.00417.62
8.2.10.0050.00217.67
8.2.00.0070.00017.81
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0060.00322.69
8.1.230.0090.00318.98
8.1.220.0060.00317.75
8.1.210.0050.00318.77
8.1.200.0040.00417.23
8.1.190.0000.00817.10
8.1.180.0060.00318.10
8.1.170.0000.00818.48
8.1.160.0030.00518.82
8.1.150.0000.00820.59
8.1.140.0040.00417.43
8.1.130.0000.00717.88
8.1.120.0040.00717.48
8.1.110.0030.00517.41
8.1.100.0040.00417.34
8.1.90.0070.00017.39
8.1.80.0040.00417.29
8.1.70.0030.00317.37
8.1.60.0050.00317.38
8.1.50.0000.00717.30
8.1.40.0070.00017.35
8.1.30.0030.00617.48
8.1.20.0080.00017.53
8.1.10.0000.00817.48
8.1.00.0000.00817.32
8.0.300.0080.00018.77
8.0.290.0000.00816.63
8.0.280.0030.00318.45
8.0.270.0030.00317.17
8.0.260.0000.00616.88
8.0.250.0030.00616.95
8.0.240.0000.00916.84
8.0.230.0030.00316.89
8.0.220.0070.00016.85
8.0.210.0000.00716.76
8.0.200.0000.00616.84
8.0.190.0040.00416.86
8.0.180.0040.00416.89
8.0.170.0060.00316.82
8.0.160.0050.00216.79
8.0.150.0000.00816.81
8.0.140.0080.00016.84
8.0.130.0050.00013.21
8.0.120.0030.00516.67
8.0.110.0040.00416.94
8.0.100.0030.00316.67
8.0.90.0000.00716.71
8.0.80.0070.00716.85
8.0.70.0050.00216.89
8.0.60.0040.00416.86
8.0.50.0050.00316.70
8.0.30.0100.00917.22
8.0.20.0120.00817.24
8.0.10.0040.00416.79
8.0.00.0080.01116.71
7.4.330.0040.00412.86
7.4.320.0070.00016.54
7.4.300.0060.00016.54
7.4.290.0030.00316.41
7.4.280.0050.00516.45
7.4.270.0030.00316.39
7.4.260.0030.00313.23
7.4.250.0030.00616.38
7.4.240.0000.00816.35
7.4.230.0030.00316.64
7.4.220.0130.00916.50
7.4.210.0080.00816.60
7.4.200.0030.00316.55
7.4.190.0020.00516.50
7.4.160.0030.01816.48
7.4.150.0100.00916.57
7.4.140.0110.00516.42
7.4.130.0110.01016.36
7.4.120.0120.00516.38
7.4.110.0110.00716.38
7.4.100.0070.01016.48
7.4.90.0110.00716.56
7.4.80.0030.01719.39
7.4.70.0060.00916.49
7.4.60.0070.01016.34
7.4.50.0120.00016.09
7.4.40.0030.01016.48
7.4.30.0120.00316.50
7.4.10.0030.01415.04
7.4.00.0060.00814.95
7.3.330.0000.00613.05
7.3.320.0000.00513.07
7.3.310.0000.00716.11
7.3.300.0000.00716.20
7.3.290.0040.01016.23
7.3.280.0110.00516.24
7.3.270.0070.01016.20
7.3.260.0060.01116.14
7.3.250.0080.01216.49
7.3.240.0130.00316.58
7.3.230.0100.00716.45
7.3.210.0080.00816.18
7.3.200.0130.00316.63
7.3.190.0100.00716.16
7.3.180.0090.00616.48
7.3.170.0080.00816.41
7.3.160.0130.00316.39
7.3.130.0170.00014.36
7.3.120.0060.01114.61
7.3.110.0110.00614.71
7.3.100.0030.01314.73
7.3.90.0100.00714.61
7.3.80.0090.00214.44
7.3.70.0080.00614.80
7.3.60.0060.00714.63
7.3.50.0040.00914.76
7.3.40.0060.00814.68
7.3.30.0050.00814.72
7.3.20.0040.00816.64
7.3.10.0040.01016.69
7.3.00.0060.00716.51
7.2.330.0070.01016.72
7.2.320.0070.01016.65
7.2.310.0110.01016.42
7.2.300.0060.01616.65
7.2.290.0130.00316.56
7.2.260.0100.01014.87
7.2.250.0070.01014.96
7.2.240.0040.01215.02
7.2.230.0090.00614.85
7.2.220.0090.00514.98
7.2.210.0060.00614.90
7.2.200.0060.01014.96
7.2.190.0060.00915.01
7.2.180.0020.00914.82
7.2.170.0060.00814.93
7.2.160.0050.00814.80
7.2.150.0010.01016.64
7.2.140.0050.00816.77
7.2.130.0050.00816.83
7.2.120.0080.00816.84
7.2.110.0050.01116.79
7.2.100.0080.00916.85
7.2.90.0050.00816.65
7.2.80.0060.00716.94
7.2.70.0060.00616.85
7.2.60.0020.01216.72
7.2.50.0050.00716.86
7.2.40.0060.00816.84
7.2.30.0050.00916.85
7.2.20.0090.00616.80
7.2.10.0060.00816.80
7.2.00.0080.00817.45
7.1.330.0060.00715.65
7.1.320.0060.00815.75
7.1.310.0030.01215.71
7.1.300.0070.00615.71
7.1.290.0040.00915.67
7.1.280.0050.01015.72
7.1.270.0050.00715.68
7.1.260.0050.00715.81
7.1.250.0050.00615.83
7.1.240.0100.00715.72
7.1.230.0040.01115.88
7.1.220.0040.00815.71
7.1.210.0060.00615.86
7.1.200.0050.00815.89
7.1.190.0060.00315.71
7.1.180.0040.00715.79
7.1.170.0060.00615.88
7.1.160.0030.00615.95
7.1.150.0060.00615.81
7.1.140.0070.00715.56
7.1.130.0100.00315.89
7.1.120.0100.00715.60
7.1.110.0100.00715.65
7.1.100.0070.00516.80
7.1.90.0090.00315.97
7.1.80.0030.00915.89
7.1.70.0020.01016.61
7.1.60.0030.00816.34
7.1.50.0030.01416.41
7.1.40.0090.00615.77
7.1.30.0070.00415.67
7.1.20.0060.00315.86
7.1.10.0070.00715.71
7.1.00.0090.02719.00
7.0.330.0040.01115.53
7.0.320.0030.00615.48
7.0.310.0060.00715.33
7.0.300.0030.01015.32
7.0.290.0040.00715.16
7.0.280.0030.00715.26
7.0.270.0030.01015.48
7.0.260.0070.00715.45
7.0.250.0100.00315.40
7.0.240.0060.00615.25
7.0.230.0000.00915.51
7.0.220.0000.01015.25
7.0.210.0080.00315.50
7.0.200.0030.00716.05
7.0.190.0000.01015.39
7.0.180.0100.00315.34
7.0.170.0030.01415.30
7.0.160.0060.00615.43
7.0.150.0000.01515.41
7.0.140.0050.03718.79
7.0.130.0060.01015.53
7.0.120.0060.04018.72
7.0.110.0090.00315.45
7.0.100.0040.01115.37
7.0.90.0090.00615.38
7.0.80.0090.00315.16
7.0.70.0110.00415.22
7.0.60.0050.03817.74
7.0.50.0030.04716.57
7.0.40.0070.04716.61
7.0.30.0220.03716.80
7.0.20.0130.02316.82
7.0.10.0230.03316.66
7.0.00.0100.02716.82
5.6.400.0060.00614.03
5.6.390.0120.00614.16
5.6.380.0000.01314.16
5.6.370.0060.00314.26
5.6.360.0000.00814.15
5.6.350.0030.00914.26
5.6.340.0070.00314.22
5.6.330.0040.00814.14
5.6.320.0000.01214.28
5.6.310.0060.00914.05
5.6.300.0120.00414.50
5.6.290.0000.01714.24
5.6.280.0020.04117.76
5.6.270.0000.01514.32
5.6.260.0070.00714.48
5.6.250.0060.00914.37
5.6.240.0030.00613.96
5.6.230.0030.00614.19
5.6.220.0080.00414.10
5.6.210.0140.03517.48
5.6.200.0130.04216.28
5.6.190.0060.04317.29
5.6.180.0180.03517.41
5.6.170.0160.02917.38
5.6.160.0080.04217.14
5.6.150.0050.03416.06
5.6.140.0080.04316.17
5.6.130.0070.04316.18
5.6.120.0060.02117.56
5.6.110.0020.05117.51
5.6.100.0070.02217.63
5.6.90.0040.02317.63
5.6.80.0050.02217.30
5.6.70.0170.04017.22
5.6.60.0080.00314.04
5.6.50.0070.00714.39
5.6.40.0040.01114.03
5.6.30.0150.00014.21
5.6.20.0110.00314.21
5.6.10.0060.00914.06
5.6.00.0110.00313.95
5.5.380.0030.01014.23
5.5.370.0030.01014.22
5.5.360.0030.00913.84
5.5.350.0170.03717.25
5.5.340.0100.03715.99
5.5.330.0090.03717.01
5.5.320.0120.02517.00
5.5.310.0200.04217.21
5.5.300.0050.03516.06
5.5.290.0050.02516.01
5.5.280.0050.03017.61
5.5.270.0070.04817.51
5.5.260.0050.02417.57
5.5.250.0070.04317.30
5.5.240.0030.04216.96
5.5.230.0060.00614.14
5.5.220.0040.01113.79
5.5.210.0070.00413.86
5.5.200.0060.01214.21
5.5.190.0070.00714.18
5.5.180.0060.00314.28
5.5.170.0100.00313.78
5.5.160.0050.00513.76
5.5.150.0070.00714.07
5.5.140.0030.00614.07
5.5.130.0030.01013.98
5.5.120.0090.00614.14
5.5.110.0000.01114.08
5.5.100.0030.01313.91
5.5.90.0030.00913.73
5.5.80.0070.00314.20
5.5.70.0080.00013.96
5.5.60.0090.00614.05
5.5.50.0030.00714.06
5.5.40.0030.00614.17
5.5.30.0070.00713.96
5.5.20.0070.01013.78
5.5.10.0040.00714.30
5.5.00.0000.01113.87
5.4.450.0050.04115.42
5.4.440.0080.04215.45
5.4.430.0050.03015.42
5.4.420.0050.02515.43
5.4.410.0020.02715.21
5.4.400.0060.02615.29
5.4.390.0070.03515.16
5.4.380.0070.04015.22
5.4.370.0030.04015.26
5.4.360.0070.02015.31
5.4.350.0020.04515.28
5.4.340.0100.03515.17
5.4.330.0050.00311.43
5.4.320.0060.04115.25
5.4.310.0100.03815.30
5.4.300.0110.02315.28
5.4.290.0080.03715.21
5.4.280.0050.02815.29
5.4.270.0030.04515.26
5.4.260.0030.02815.29
5.4.250.0050.03715.29
5.4.240.0100.03815.17
5.4.230.0070.02215.25
5.4.220.0060.04315.21
5.4.210.0050.03915.31
5.4.200.0080.03415.29
5.4.190.0140.03515.10
5.4.180.0100.03715.28
5.4.170.0050.02815.27
5.4.160.0070.04015.16
5.4.150.0060.02315.27
5.4.140.0050.03713.82
5.4.130.0050.03213.90
5.4.120.0200.02613.80
5.4.110.0020.02713.85
5.4.100.0040.02613.92
5.4.90.0080.02813.90
5.4.80.0070.03613.85
5.4.70.0000.03713.84
5.4.60.0080.02813.85
5.4.50.0050.03013.82
5.4.40.0110.03513.77
5.4.30.0100.03713.86
5.4.20.0070.03713.91
5.4.10.0070.04013.84
5.4.00.0050.03713.61
5.3.290.0130.02813.10
5.3.280.0090.03712.95
5.3.270.0030.04312.99
5.3.260.0070.02913.00
5.3.250.0110.01812.98
5.3.240.0070.02612.96
5.3.230.0020.03212.95
5.3.220.0130.02812.98
5.3.210.0050.04412.93
5.3.200.0100.03812.93
5.3.190.0030.04712.98
5.3.180.0050.03412.96
5.3.170.0060.02812.96
5.3.160.0090.03212.96
5.3.150.0100.02712.96
5.3.140.0050.04312.88
5.3.130.0070.04412.95
5.3.120.0110.02912.97
5.3.110.0080.04512.95
5.3.100.0090.02712.69
5.3.90.0070.04412.63
5.3.80.0110.03912.68
5.3.70.0050.04112.73
5.3.60.0070.04212.61
5.3.50.0050.03812.59
5.3.40.0070.03512.67
5.3.30.0080.03612.64
5.3.20.0070.02412.52
5.3.10.0070.03312.52
5.3.00.0030.04212.44
5.2.170.0030.05011.14
5.2.160.0070.05711.09
5.2.150.0100.04011.13
5.2.140.0100.04711.22
5.2.130.0070.03310.98
5.2.120.0070.06011.00
5.2.110.0000.04711.02
5.2.100.0000.06011.06
5.2.90.0100.06010.99
5.2.80.0000.06711.07
5.2.70.0100.03311.06
5.2.60.0030.03710.93
5.2.50.0100.06011.09
5.2.40.0030.04310.98
5.2.30.0030.04310.87
5.2.20.0070.03010.87
5.2.10.0130.04011.01
5.2.00.0070.03310.86
5.1.60.0100.05010.13
5.1.50.0000.03010.14
5.1.40.0100.0509.87
5.1.30.0000.06010.29
5.1.20.0070.05310.32
5.1.10.0070.05010.04
5.1.00.0070.05010.04
5.0.50.0030.0378.45
5.0.40.0000.0478.42
5.0.30.0030.0408.12
5.0.20.0030.0238.10
5.0.10.0070.0178.13
5.0.00.0070.0278.16
4.4.90.0030.0177.84
4.4.80.0070.0277.84
4.4.70.0000.0177.84
4.4.60.0000.0207.84
4.4.50.0000.0177.84
4.4.40.0000.0277.84
4.4.30.0070.0337.84
4.4.20.0100.0277.84
4.4.10.0030.0337.84
4.4.00.0000.0507.84
4.3.110.0000.0377.84
4.3.100.0000.0277.84
4.3.90.0000.0177.84
4.3.80.0000.0477.84
4.3.70.0000.0337.84
4.3.60.0000.0307.84
4.3.50.0030.0237.84
4.3.40.0030.0537.84
4.3.30.0000.0307.84
4.3.20.0000.0237.84
4.3.10.0000.0277.84
4.3.00.0000.0207.84

preferences:
52.6 ms | 400 KiB | 5 Q