3v4l.org

run code in 300+ PHP versions simultaneously
<?php $z1 = "abc"; $out = "a"; for ($i = 0; $i < strlen($z1); $i++) { $out[$i] = $z1[$i]; // $out = $out.$z1[$i]; } print $out;

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)
8.3.60.0070.01416.63
8.3.50.0140.00618.03
8.3.40.0110.00418.54
8.3.30.0100.00318.70
8.3.20.0080.00018.91
8.3.10.0060.00320.66
8.3.00.0100.01019.25
8.2.180.0120.00316.38
8.2.170.0130.00722.96
8.2.160.0110.00818.96
8.2.150.0000.00924.18
8.2.140.0080.00024.66
8.2.130.0070.00326.16
8.2.120.0040.00418.77
8.2.110.0030.00720.99
8.2.100.0070.00418.03
8.2.90.0000.00919.43
8.2.80.0040.00419.27
8.2.70.0080.00017.63
8.2.60.0040.00417.93
8.2.50.0000.00918.07
8.2.40.0080.00018.14
8.2.30.0060.00618.08
8.2.20.0050.00319.38
8.2.10.0040.00417.80
8.2.00.0060.00317.76
8.1.280.0060.01025.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0100.00320.82
8.1.230.0000.01120.97
8.1.220.0050.00317.74
8.1.210.0000.01118.98
8.1.200.0000.01017.35
8.1.190.0000.00717.30
8.1.180.0090.00018.10
8.1.170.0030.00620.60
8.1.160.0000.00818.89
8.1.150.0040.00418.63
8.1.140.0050.00217.43
8.1.130.0000.00717.77
8.1.120.0070.00017.44
8.1.110.0030.00517.52
8.1.100.0050.00217.35
8.1.90.0070.00017.41
8.1.80.0040.00417.43
8.1.70.0000.00717.42
8.1.60.0040.00417.52
8.1.50.0040.00417.51
8.1.40.0000.00817.54
8.1.30.0000.00717.53
8.1.20.0040.00417.61
8.1.10.0000.00717.55
8.1.00.0040.00417.57
8.0.300.0000.00719.94
8.0.290.0040.00416.71
8.0.280.0060.00018.30
8.0.270.0030.00317.31
8.0.260.0040.00416.73
8.0.250.0000.00716.84
8.0.240.0040.00416.89
8.0.230.0080.00016.92
8.0.220.0020.00516.77
8.0.210.0070.00016.79
8.0.200.0000.00916.93
8.0.190.0070.00016.87
8.0.180.0000.00716.86
8.0.170.0060.00316.75
8.0.160.0070.00016.89
8.0.150.0090.00016.81
8.0.140.0040.00416.80
8.0.130.0000.00513.30
8.0.120.0000.00716.87
8.0.110.0000.00816.75
8.0.100.0040.00316.94
8.0.90.0050.00216.68
8.0.80.0060.00916.92
8.0.70.0030.00516.68
8.0.60.0000.00716.76
8.0.50.0060.00316.86
8.0.30.0140.00317.14
8.0.20.0100.00917.03
8.0.10.0040.00416.90
8.0.00.0130.00816.86
7.4.330.0000.00512.91
7.4.320.0060.00016.56
7.4.300.0060.00016.40
7.4.290.0000.00716.35
7.4.280.0080.00016.50
7.4.270.0060.00016.40
7.4.260.0000.00513.25
7.4.250.0000.00816.44
7.4.240.0000.00716.40
7.4.230.0040.00416.38
7.4.220.0130.00616.50
7.4.210.0050.00816.52
7.4.200.0000.00716.49
7.4.190.0030.00316.66
7.4.160.0080.00716.34
7.4.150.0120.00616.45
7.4.140.0070.01216.30
7.4.130.0060.01216.54
7.4.120.0070.01016.63
7.4.110.0000.01916.56
7.4.100.0070.01016.46
7.4.90.0090.01216.63
7.4.80.0030.01719.39
7.4.70.0090.01216.46
7.4.60.0070.01016.27
7.4.50.0040.00416.23
7.4.40.0070.01116.16
7.4.30.0080.00816.71
7.4.00.0030.01414.72
7.3.330.0030.00513.17
7.3.320.0030.00313.01
7.3.310.0070.00016.40
7.3.300.0030.00316.36
7.3.290.0080.01016.37
7.3.280.0100.01016.27
7.3.270.0070.01016.55
7.3.260.0090.00916.69
7.3.250.0080.01116.68
7.3.240.0080.00816.40
7.3.230.0110.01116.30
7.3.210.0100.01016.21
7.3.200.0100.01016.58
7.3.190.0090.01216.16
7.3.180.0100.00716.27
7.3.170.0130.00316.38
7.3.160.0140.00816.31
7.3.120.0040.01114.86
7.2.330.0120.00616.36
7.2.320.0170.00016.76
7.2.310.0060.01016.57
7.2.300.0180.00316.71
7.2.290.0130.00316.70
7.2.110.0370.00616.62
7.2.100.0400.00716.64
7.2.90.0500.00816.79
7.2.80.0460.00716.80
7.2.70.0610.01416.71
7.2.60.0740.00716.68
7.2.50.0350.00616.91
7.2.40.0210.01016.96
7.2.30.0470.00416.94
7.2.20.0210.00817.13
7.2.10.0370.01316.88
7.2.00.0140.00517.96
7.1.230.0220.01515.71
7.1.220.0490.00715.65
7.1.210.0470.00615.63
7.1.200.0410.00615.52
7.1.190.0490.01215.43
7.1.180.0620.00615.51
7.1.170.0390.00315.61
7.1.160.0170.01115.77
7.1.150.0040.01815.77
7.1.140.0120.01515.84
7.1.130.0190.00815.59
7.1.120.0170.00815.82
7.1.110.0140.00915.81
7.1.100.0110.00916.77
7.1.90.0180.00615.94
7.1.80.0420.00415.91
7.1.70.0400.00316.02
7.1.60.0150.00817.55
7.1.50.0360.01116.37
7.1.40.0240.00815.80
7.1.30.0400.01315.66
7.1.20.0230.01215.93
7.1.10.0200.00815.44
7.1.00.0140.04119.13
7.0.310.0300.00415.26
7.0.300.0210.00815.22
7.0.290.0360.00315.19
7.0.280.0150.00915.47
7.0.270.0360.01015.09
7.0.260.0320.01015.42
7.0.250.0360.00715.41
7.0.240.0160.00815.34
7.0.230.0310.00715.45
7.0.220.0140.01015.45
7.0.210.0190.00315.35
7.0.200.0080.00915.98
7.0.190.0150.00615.48
7.0.180.0200.00815.35
7.0.170.0510.00715.42
7.0.160.0210.00515.55
7.0.150.0460.00715.55
7.0.140.0150.03518.65
7.0.130.0140.01415.38
7.0.120.0070.04518.78
7.0.110.0200.00515.16
7.0.100.0090.01715.52
7.0.90.0200.00315.52
7.0.80.0170.00715.19
7.0.70.0200.00315.56
7.0.60.0080.04417.69
7.0.50.0090.05016.67
7.0.40.0160.03915.55
7.0.30.0110.04415.64
7.0.20.0130.02215.46
7.0.10.0120.03715.46
7.0.00.0090.04715.46
5.6.380.0260.00914.50
5.6.370.0410.00914.73
5.6.360.0210.00414.41
5.6.350.0080.01714.46
5.6.340.0120.01614.73
5.6.330.0190.01014.16
5.6.320.0140.01414.39
5.6.310.0250.00514.43
5.6.300.0090.01714.40
5.6.290.0180.00714.57
5.6.280.0110.04117.63
5.6.270.0130.01014.30
5.6.260.0100.01414.71
5.6.250.0190.00414.27
5.6.240.0090.01214.53
5.6.230.0190.00614.34
5.6.220.0170.00814.24
5.6.210.0080.04817.48
5.6.200.0130.04116.20
5.6.190.0110.04416.23
5.6.180.0140.04116.14
5.6.170.0090.03016.20
5.6.160.0160.01816.22
5.6.150.0160.02516.26
5.6.140.0090.04416.24
5.6.130.0070.04116.28
5.6.120.0110.04516.18
5.6.110.0080.02716.19
5.6.100.0140.02216.18
5.6.90.0140.02216.34
5.6.80.0060.03215.77
5.6.70.0080.02315.95
5.6.60.0150.02215.94
5.6.50.0140.02216.00
5.6.40.0270.02115.84
5.6.30.0150.02515.91
5.6.20.0200.02315.63
5.6.10.0180.02115.87
5.6.00.0160.02815.72
5.5.380.0110.00211.04
5.5.370.0090.00911.08
5.5.360.0110.00511.25
5.5.350.0270.03115.67
5.5.340.0090.04314.60
5.5.330.0100.04314.49
5.5.320.0070.03514.47
5.5.310.0060.02814.40
5.5.300.0070.03914.60
5.5.290.0100.04214.55
5.5.280.0110.03414.62
5.5.270.0080.02314.61
5.5.260.0080.02514.61
5.5.250.0100.03214.45
5.5.240.0070.02914.28
5.5.230.0080.02314.24
5.5.220.0050.02414.29
5.5.210.0120.01814.24
5.5.200.0110.01714.06
5.5.190.0110.02014.04
5.5.180.0050.02214.02
5.5.170.0280.00614.36
5.5.160.0110.02014.04
5.5.150.0070.02414.07
5.5.140.0110.02114.18
5.5.130.0110.02214.27
5.5.120.0100.02214.18
5.5.110.0070.02214.22
5.5.100.0110.01714.07
5.5.90.0110.02114.21
5.5.80.0090.02314.03
5.5.70.0150.02214.23
5.5.60.0020.02614.19
5.5.50.0120.01814.21
5.5.40.0080.02114.11
5.5.30.0120.01714.02
5.5.20.0130.01913.95
5.5.10.0080.02013.98
5.5.00.0110.02114.02
5.4.450.0080.02814.99
5.4.440.0090.02315.29
5.4.430.0100.03515.27
5.4.420.0080.02115.28
5.4.410.0060.04815.30
5.4.400.0110.02715.09
5.4.390.0110.04014.92
5.4.380.0080.02214.92
5.4.370.0070.02215.04
5.4.360.0140.02115.07
5.4.350.0140.02014.96
5.4.340.0130.02215.01
5.4.330.0180.01210.93
5.4.320.0110.02214.87
5.4.310.0120.02214.74
5.4.300.0080.02114.95
5.4.290.0100.02014.99
5.4.280.0110.02115.10
5.4.270.0090.02314.95
5.4.260.0110.02114.81
5.4.250.0080.02714.92
5.4.240.0080.02114.94
5.4.230.0090.01815.07
5.4.220.0120.01815.07
5.4.210.0130.02215.03
5.4.200.0100.02215.11
5.4.190.0090.02614.97
5.4.180.0170.01915.01
5.4.170.0090.02015.00
5.4.160.0060.02115.01
5.4.150.0110.02215.01
5.4.140.0040.02213.62
5.4.130.0110.04213.64
5.4.120.0130.02613.77
5.4.110.0140.03313.63
5.4.100.0170.01713.61
5.4.90.0150.02213.68
5.4.80.0110.03613.70
5.4.70.0060.02313.60
5.4.60.0190.03213.74
5.4.50.0100.02613.55
5.4.40.0100.03413.62
5.4.30.0070.02413.69
5.4.20.0070.04113.53
5.4.10.0110.03613.50
5.4.00.0050.04013.30
5.3.290.0070.02412.57
5.3.280.0100.02212.47
5.3.270.0170.01212.49
5.3.260.0120.02012.46
5.3.250.0090.02812.47
5.3.240.0080.02212.40
5.3.230.0120.04012.47
5.3.220.0090.03312.47
5.3.210.0080.04312.40
5.3.200.0090.02912.44
5.3.190.0080.03412.52
5.3.180.0090.04112.52
5.3.170.0100.03412.47
5.3.160.0110.03612.45
5.3.150.0130.02412.52
5.3.140.0090.02712.51
5.3.130.0140.02012.46
5.3.120.0020.04412.52
5.3.110.0110.03812.49
5.3.100.0080.04012.26
5.3.90.0100.03812.09
5.3.80.0070.04112.22
5.3.70.0090.04012.15
5.3.60.0050.03712.11
5.3.50.0080.04012.14
5.3.40.0090.03712.15
5.3.30.0130.03112.08
5.3.20.0070.04512.02
5.3.10.0070.04011.99
5.3.00.0110.03711.88
5.2.170.0060.02610.82
5.2.160.0090.02810.82
5.2.150.0070.02210.82
5.2.140.0040.02510.82
5.2.130.0040.01710.82
5.2.120.0030.03610.82
5.2.110.0100.02610.82
5.2.100.0070.03310.82
5.2.90.0080.02710.82
5.2.80.0050.02310.82
5.2.70.0050.02610.82
5.2.60.0130.02510.82
5.2.50.0040.03710.82
5.2.40.0090.02810.82
5.2.30.0050.02610.82
5.2.20.0050.02110.82
5.2.10.0030.03410.82
5.2.00.0070.03210.82
5.1.60.0070.02710.82
5.1.50.0030.02110.82
5.1.40.0050.02010.82
5.1.30.0070.02210.82
5.1.20.0100.02710.82
5.1.10.0060.01910.82
5.1.00.0050.01510.82
5.0.50.0080.02210.82
5.0.40.0080.01810.82
5.0.30.0020.02910.82
5.0.20.0050.01610.82
5.0.10.0040.01710.82
5.0.00.0030.03010.82
4.4.90.0050.01810.82
4.4.80.0030.01410.82
4.4.70.0030.01810.82
4.4.60.0000.02110.82
4.4.50.0030.01110.82
4.4.40.0030.02110.82
4.4.30.0020.01210.82
4.4.20.0000.02310.82
4.4.10.0030.01010.82
4.4.00.0020.02910.82
4.3.110.0060.01810.82
4.3.100.0040.01810.82
4.3.90.0010.02110.82
4.3.80.0040.02910.82
4.3.70.0030.01810.82
4.3.60.0040.01210.82
4.3.50.0040.01210.82
4.3.40.0050.01210.82
4.3.30.0020.01510.82
4.3.20.0020.02010.82
4.3.10.0020.01910.82
4.3.00.0040.01210.82

preferences:
44.53 ms | 401 KiB | 5 Q