3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'foooooooo'; var_dump($x[0], $x[-1]);

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)
8.3.40.0090.00618.62
8.3.30.0100.00319.04
8.3.20.0000.00720.34
8.3.10.0000.00822.05
8.3.00.0040.00422.39
8.2.170.0130.00722.96
8.2.160.0120.00318.83
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0100.00726.16
8.2.120.0050.00319.54
8.2.110.0090.00022.12
8.2.100.0070.00319.25
8.2.90.0050.00219.10
8.2.80.0040.00419.28
8.2.70.0060.00317.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0000.00818.22
8.2.30.0020.00518.10
8.2.20.0050.00317.70
8.2.10.0050.00317.66
8.2.00.0040.00417.58
8.1.270.0000.00820.27
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.84
8.1.230.0030.00718.98
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0060.00317.23
8.1.190.0000.00817.39
8.1.180.0000.00718.88
8.1.170.0040.00418.54
8.1.160.0040.00322.18
8.1.150.0000.00718.48
8.1.140.0050.00217.39
8.1.130.0000.00717.86
8.1.120.0080.00017.29
8.1.110.0080.00017.38
8.1.100.0050.00317.43
8.1.90.0030.00517.41
8.1.80.0000.00717.36
8.1.70.0070.00017.38
8.1.60.0060.00317.53
8.1.50.0080.00017.46
8.1.40.0050.00317.50
8.1.30.0000.00717.58
8.1.20.0090.00017.55
8.1.10.0030.00517.55
8.1.00.0050.00217.39
8.0.300.0000.00818.77
8.0.290.0040.00417.04
8.0.280.0080.00018.38
8.0.270.0080.00017.24
8.0.260.0050.00316.79
8.0.250.0030.00316.78
8.0.240.0050.00316.79
8.0.230.0000.00816.88
8.0.220.0000.00716.88
8.0.210.0000.00716.79
8.0.200.0070.00016.93
8.0.190.0070.00016.75
8.0.180.0040.00816.79
8.0.170.0000.00816.82
8.0.160.0040.00416.87
8.0.150.0000.00716.72
8.0.140.0020.00516.80
8.0.130.0000.00513.27
8.0.120.0000.00716.79
8.0.110.0000.00816.71
8.0.100.0000.00716.71
8.0.90.0030.00316.93
8.0.80.0140.00416.88
8.0.70.0040.00416.86
8.0.60.0040.00416.72
8.0.50.0040.00416.87
8.0.30.0050.01417.02
8.0.20.0100.01317.40
8.0.10.0000.00716.75
8.0.00.0040.01316.75
7.4.330.0000.00515.00
7.4.320.0030.00316.44
7.4.300.0030.00316.46
7.4.290.0030.00316.39
7.4.280.0030.00316.52
7.4.270.0030.00316.58
7.4.260.0040.00416.54
7.4.250.0000.00716.51
7.4.240.0020.00516.48
7.4.230.0000.00716.41
7.4.220.0030.01816.61
7.4.210.0080.00616.48
7.4.200.0000.00716.64
7.4.190.0050.00216.61
7.4.160.0100.00716.37
7.4.150.0070.01117.40
7.4.140.0110.01017.86
7.4.130.0100.00616.46
7.4.120.0070.01116.47
7.4.110.0120.01216.39
7.4.100.0120.00916.33
7.4.90.0110.00616.57
7.4.80.0040.01419.39
7.4.70.0030.01316.34
7.4.60.0100.00716.67
7.4.50.0040.00016.55
7.4.40.0000.01522.77
7.4.30.0090.01216.35
7.4.10.0040.01515.05
7.4.00.0030.01414.97
7.3.330.0000.00613.11
7.3.320.0000.00512.93
7.3.310.0030.00516.07
7.3.300.0030.00316.22
7.3.290.0110.00616.16
7.3.280.0060.01016.18
7.3.270.0140.00317.40
7.3.260.0150.00616.54
7.3.250.0160.00816.17
7.3.240.0090.01216.23
7.3.230.0090.00816.53
7.3.210.0100.00716.59
7.3.200.0060.01019.39
7.3.190.0090.00616.43
7.3.180.0070.01016.46
7.3.170.0070.01016.41
7.3.160.0070.01016.29
7.3.130.0030.01414.95
7.3.120.0090.00814.69
7.3.110.0000.01514.49
7.3.100.0050.00814.86
7.3.90.0080.00314.85
7.3.80.0030.01314.63
7.3.70.0040.00914.59
7.3.60.0050.00614.64
7.3.50.0050.00814.82
7.3.40.0090.00914.64
7.3.30.0060.00614.76
7.3.20.0070.00716.60
7.3.10.0050.00916.72
7.3.00.0040.00916.47
7.2.330.0090.00916.26
7.2.320.0090.01416.51
7.2.310.0060.01216.21
7.2.300.0100.00616.42
7.2.290.0100.00616.41
7.2.260.0070.01014.84
7.2.250.0080.00814.97
7.2.240.0060.00614.86
7.2.230.0070.00814.76
7.2.220.0070.00715.01
7.2.210.0070.00814.70
7.2.200.0060.00614.84
7.2.190.0030.01014.75
7.2.180.0060.01014.88
7.2.170.0050.00814.75
7.2.160.0070.00414.79
7.2.150.0080.00516.49
7.2.140.0070.00316.68
7.2.130.0000.01216.76
7.2.120.0080.00316.70
7.2.110.0090.00316.80
7.2.100.0070.00516.70
7.2.90.0040.00916.84
7.2.80.0050.00916.64
7.2.70.0080.00616.78
7.2.60.0100.00716.69
7.2.50.0060.00816.67
7.2.40.0050.01016.71
7.2.30.0050.00716.69
7.2.20.0130.00316.71
7.2.10.0060.01116.66
7.2.00.0030.01117.62
7.1.330.0080.00515.70
7.1.320.0050.00715.68
7.1.310.0070.00915.61
7.1.300.0030.01115.63
7.1.290.0020.01115.64
7.1.280.0020.00915.59
7.1.270.0030.00815.78
7.1.260.0100.00215.78
7.1.250.0050.00815.73
7.1.240.0000.01415.83
7.1.230.0080.00415.71
7.1.220.0110.00315.85
7.1.210.0050.00515.61
7.1.200.0050.00615.78
7.1.190.0030.01015.68
7.1.180.0030.00615.80
7.1.170.0070.00715.79
7.1.160.0070.01015.77
7.1.150.0030.00815.56
7.1.140.0080.00815.86
7.1.130.0090.00615.55
7.1.120.0030.00915.54
7.1.110.0070.00715.84
7.1.100.0020.01016.98
7.1.90.0060.00915.79
7.1.80.0080.00415.91
7.1.70.0130.00216.46
7.1.60.0050.01017.76
7.1.50.0100.00816.27
7.1.40.0090.00615.62
7.1.30.0070.01115.91
7.1.20.0030.01115.85
7.1.10.0030.01215.88
7.1.00.0060.04119.19
7.0.330.0090.00315.30
7.0.320.0030.01015.46
7.0.310.0090.00615.27
7.0.300.0070.00715.19
7.0.290.0000.01115.23
7.0.280.0040.00715.25
7.0.270.0110.00315.02
7.0.260.0030.00515.38
7.0.250.0110.00415.30
7.0.240.0060.00615.13
7.0.230.0000.01715.14
7.0.220.0040.00715.39
7.0.210.0030.01015.19
7.0.200.0070.00316.05
7.0.190.0110.00415.40
7.0.180.0070.00715.30
7.0.170.0070.01015.39
7.0.160.0110.00415.51
7.0.150.0030.00915.30
7.0.140.0030.04118.77
7.0.130.0070.00715.53
7.0.120.0060.00815.25
7.0.110.0090.00415.33
7.0.100.0060.00615.45
7.0.90.0080.00015.38
7.0.80.0040.01115.29
7.0.70.0110.00015.34
7.0.60.0050.04217.63
7.0.50.0040.03916.58
7.0.40.0110.04316.88
7.0.30.0130.02316.79
7.0.20.0160.04016.67
7.0.10.0150.02716.81
7.0.00.0080.02716.63
5.6.400.0090.00614.29
5.6.390.0060.00614.10
5.6.380.0040.01114.22
5.6.370.0000.01114.40
5.6.360.0030.01014.21
5.6.350.0090.00014.29
5.6.340.0060.00914.20
5.6.330.0080.00814.19
5.6.320.0040.01214.46
5.6.310.0040.00814.12
5.6.300.0060.00914.47
5.6.290.0040.01114.11
5.6.280.0120.03117.64
5.6.270.0030.00914.04
5.6.260.0060.00614.27
5.6.250.0080.00414.22
5.6.240.0030.00914.19
5.6.230.0040.01114.28
5.6.220.0060.00314.32
5.6.210.0060.02117.29
5.6.200.0080.02616.26
5.6.190.0060.03917.40
5.6.180.1570.03217.39
5.6.170.0100.02717.59
5.6.160.0050.02817.34
5.6.150.0060.04016.25
5.6.140.0050.02316.22
5.6.130.0040.02616.17
5.6.120.0130.03017.63
5.6.110.0090.03717.56
5.6.100.0070.04217.52
5.6.90.0070.04417.66
5.6.80.0050.02517.25
5.6.70.0190.03817.37
5.6.60.0000.01214.14
5.6.50.0090.00614.13
5.6.40.0000.01114.09
5.6.30.0060.00914.27
5.6.20.0040.00814.19
5.6.10.0060.00914.36
5.6.00.0030.00914.10
5.5.380.0060.00914.14
5.5.370.0130.00314.09
5.5.360.0000.01214.27
5.5.350.0100.03117.35
5.5.340.0030.02516.13
5.5.330.0030.02917.30
5.5.320.0180.04017.21
5.5.310.0090.02517.23
5.5.300.0070.02416.17
5.5.290.0080.02716.03
5.5.280.0150.04317.54
5.5.270.0100.04117.58
5.5.260.0080.03517.40
5.5.250.0070.04217.43
5.5.240.0080.04317.17
5.5.230.0070.00714.20
5.5.220.0000.01513.88
5.5.210.0000.01313.92
5.5.200.0000.01114.31
5.5.190.0030.00714.29
5.5.180.0070.00714.13
5.5.170.0080.00413.98
5.5.160.0030.00814.02
5.5.150.0040.01114.23
5.5.140.0030.01414.15
5.5.130.0030.01214.19
5.5.120.0000.01713.84
5.5.110.0080.00314.29
5.5.100.0000.01114.20
5.5.90.0030.00914.23
5.5.80.0000.01714.26
5.5.70.0110.00014.23
5.5.60.0100.00713.83
5.5.50.0070.01014.37
5.5.40.0040.01113.90
5.5.30.0110.00414.10
5.5.20.0040.01113.91
5.5.10.0060.00613.89
5.5.00.0000.01414.14
5.4.450.0160.04615.76
5.4.440.0120.04015.86
5.4.430.0350.02215.83
5.4.420.0130.03215.84
5.4.410.0200.03415.79
5.4.400.0150.04115.57
5.4.390.0160.02015.69
5.4.380.0200.03715.77
5.4.370.0180.01815.73
5.4.360.0160.02115.67
5.4.350.0130.02115.76
5.4.340.0120.03215.67
5.4.330.0060.00612.26
5.4.320.0210.03515.74
5.4.310.0180.02715.58
5.4.300.0130.02615.69
5.4.290.0170.02015.59
5.4.280.0150.02215.71
5.4.270.0180.01615.59
5.4.260.0200.03715.57
5.4.250.0150.02615.77
5.4.240.0200.03215.67
5.4.230.0150.03915.59
5.4.220.0200.02515.75
5.4.210.0150.02215.69
5.4.200.0130.02915.74
5.4.190.0140.03015.67
5.4.180.0140.02215.76
5.4.170.0110.02415.52
5.4.160.0180.03315.73
5.4.150.0200.03515.56
5.4.140.0220.01814.32
5.4.130.0200.03314.26
5.4.120.0150.01814.36
5.4.110.0180.02114.24
5.4.100.0130.04114.32
5.4.90.0170.03514.23
5.4.80.0120.02414.31
5.4.70.0180.02014.33
5.4.60.0110.03714.23
5.4.50.0150.03314.21
5.4.40.0100.02114.31
5.4.30.0100.01914.33
5.4.20.0170.03214.35
5.4.10.0130.03314.33
5.4.00.0190.02013.98
5.3.290.0190.03413.39
5.3.280.0140.04213.44
5.3.270.0090.03713.40
5.3.260.0250.01513.35
5.3.250.0150.02713.40
5.3.240.0170.03313.42
5.3.230.0150.03813.45
5.3.220.0110.04313.40
5.3.210.0160.03213.33
5.3.200.0110.02713.33
5.3.190.0130.03313.34
5.3.180.0130.02213.35
5.3.170.0150.02013.33
5.3.160.0110.03613.42
5.3.150.0050.02413.39
5.3.140.0100.02313.33
5.3.130.0120.03113.32
5.3.120.0160.02113.38
5.3.110.0100.02213.35
5.3.100.0160.02513.09
5.3.90.0100.02613.12
5.3.80.0160.03613.05
5.3.70.0080.03013.04
5.3.60.0100.04013.07
5.3.50.0150.02113.03
5.3.40.0050.03113.12
5.3.30.0100.02113.06
5.3.20.0140.01712.94
5.3.10.0080.02112.91
5.3.00.0110.02012.93
5.2.170.0170.02711.16
5.2.160.0170.02711.08
5.2.150.0200.03711.08
5.2.140.0170.02711.15
5.2.130.0130.03010.94
5.2.120.0130.03010.94
5.2.110.0170.02311.14
5.2.100.0030.04310.94
5.2.90.0100.03011.00
5.2.80.0070.03310.93
5.2.70.0100.03311.03
5.2.60.0130.02711.07
5.2.50.0200.02010.95
5.2.40.0030.03310.85
5.2.30.0100.02710.80
5.2.20.0100.03310.79
5.2.10.0170.02310.81
5.2.00.0130.02310.61
5.1.60.0130.0209.96
5.1.50.0100.02310.11
5.1.40.0100.02310.14
5.1.30.0070.02710.23
5.1.20.0070.03010.41
5.1.10.0170.0239.95
5.1.00.0030.0279.96
5.0.50.0000.0209.89
5.0.40.0030.0239.89
5.0.30.0070.0279.89
5.0.20.0070.0139.89
5.0.10.0030.0179.89
5.0.00.0070.0279.89
4.4.90.0030.0239.89
4.4.80.0030.0239.89
4.4.70.0000.0209.89
4.4.60.0070.0179.89
4.4.50.0030.0179.89
4.4.40.0070.0239.89
4.4.30.0000.0209.89
4.4.20.0170.0079.89
4.4.10.0000.0179.89
4.4.00.0000.0239.89
4.3.110.0100.0179.89
4.3.100.0000.0139.89
4.3.90.0030.0139.89
4.3.80.0000.0239.89
4.3.70.0000.0179.89
4.3.60.0000.0139.89
4.3.50.0000.0139.89
4.3.40.0000.0239.89
4.3.30.0000.0209.89
4.3.20.0470.0179.89
4.3.10.0530.0139.89
4.3.00.0100.0139.89

preferences:
43.95 ms | 400 KiB | 5 Q