3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '0000'; if ($str) { echo "option 1: not empty\n"; } if (strlen($str)) { echo "option 2: not empty\n"; } if (!empty($str)) { echo "option 3: not empty\n"; } if ($str !== '') { echo "option 4: not empty\n"; }

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)
8.3.60.0040.01118.18
8.3.50.0120.00722.11
8.3.40.0140.00018.71
8.3.30.0090.00620.01
8.3.20.0070.00020.21
8.3.10.0000.00722.10
8.3.00.0050.00322.43
8.2.180.0130.01018.06
8.2.170.0070.01422.96
8.2.160.0130.00022.17
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00320.88
8.2.110.0060.00322.07
8.2.100.0000.01217.91
8.2.90.0040.00419.15
8.2.80.0050.00319.16
8.2.70.0000.00817.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0000.00818.22
8.2.30.0040.00417.93
8.2.20.0000.00817.52
8.2.10.0000.00817.73
8.2.00.0040.00417.60
8.1.280.0090.01225.92
8.1.270.0040.00424.66
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0030.00623.97
8.1.230.0070.00319.21
8.1.220.0030.00617.79
8.1.210.0030.00618.77
8.1.200.0040.00417.36
8.1.190.0040.00417.16
8.1.180.0060.00318.10
8.1.170.0000.00818.69
8.1.160.0000.00722.20
8.1.150.0100.00018.57
8.1.140.0000.00717.44
8.1.130.0030.00317.72
8.1.120.0000.00717.52
8.1.110.0040.00417.41
8.1.100.0040.00417.32
8.1.90.0000.00717.41
8.1.80.0060.00317.35
8.1.70.0000.00717.38
8.1.60.0040.00417.63
8.1.50.0030.00617.40
8.1.40.0040.00417.51
8.1.30.0040.00417.56
8.1.20.0050.00317.66
8.1.10.0000.00717.59
8.1.00.0030.01017.48
8.0.300.0080.00018.77
8.0.290.0070.00017.17
8.0.280.0040.00418.30
8.0.270.0000.00717.11
8.0.260.0000.00716.80
8.0.250.0070.00016.82
8.0.240.0040.00416.93
8.0.230.0000.00716.89
8.0.220.0030.00316.81
8.0.210.0070.00016.77
8.0.200.0030.00316.83
8.0.190.0040.00416.94
8.0.180.0000.00816.77
8.0.170.0040.00416.90
8.0.160.0030.00316.84
8.0.150.0030.00316.81
8.0.140.0000.00716.88
8.0.130.0070.00013.35
8.0.120.0040.00416.83
8.0.110.0040.00416.76
8.0.100.0040.00416.86
8.0.90.0040.00416.71
8.0.80.0060.00916.94
8.0.70.0050.00316.79
8.0.60.0040.00416.77
8.0.50.0030.00516.76
8.0.30.0130.00717.01
8.0.20.0130.00617.40
8.0.10.0040.00416.89
8.0.00.0110.01116.72
7.4.330.0050.00015.00
7.4.320.0000.00616.57
7.4.300.0000.00616.57
7.4.290.0000.00716.61
7.4.280.0040.00416.49
7.4.270.0040.00416.42
7.4.260.0000.00716.56
7.4.250.0030.00516.45
7.4.240.0030.00416.55
7.4.230.0000.00716.63
7.4.220.0190.00616.46
7.4.210.0080.00616.52
7.4.200.0020.00516.57
7.4.190.0030.00316.55
7.4.160.0030.01616.41
7.4.150.0050.01417.40
7.4.140.0060.01417.86
7.4.130.0080.00916.54
7.4.120.0110.00516.41
7.4.110.0090.00816.43
7.4.100.0090.00816.40
7.4.90.0170.01116.54
7.4.80.0100.00619.39
7.4.70.0070.01016.53
7.4.60.0160.00016.36
7.4.50.0060.00316.67
7.4.40.0070.01022.77
7.4.30.0000.02016.43
7.4.00.0000.01315.18
7.3.330.0000.00513.03
7.3.320.0000.00513.11
7.3.310.0070.00016.03
7.3.300.0000.00616.17
7.3.290.0140.00416.16
7.3.280.0060.00916.20
7.3.270.0000.01817.40
7.3.260.0130.00616.64
7.3.250.0100.00716.40
7.3.240.0110.01116.41
7.3.230.0060.01016.64
7.3.210.0120.00616.18
7.3.200.0140.00519.39
7.3.190.0060.01616.19
7.3.180.0100.01016.59
7.3.170.0060.01016.35
7.3.160.0130.00316.28
7.3.120.0070.01014.64
7.3.110.0040.00814.73
7.3.100.0100.00314.77
7.3.90.0000.01414.88
7.3.80.0070.00714.66
7.3.70.0030.01514.88
7.3.60.0030.01314.89
7.3.50.0000.00914.82
7.3.40.0000.01014.73
7.3.30.0100.00314.58
7.3.20.0030.00716.52
7.3.10.0060.00616.29
7.3.00.0000.01016.50
7.2.330.0170.00016.46
7.2.320.0100.00616.65
7.2.310.0130.00916.64
7.2.300.0090.00616.38
7.2.290.0100.00616.57
7.2.240.0060.00815.03
7.2.230.0110.00715.01
7.2.220.0000.00914.96
7.2.210.0100.00614.93
7.2.200.0030.01014.93
7.2.190.0070.00714.69
7.2.180.0040.00714.82
7.2.170.0070.01014.98
7.2.160.0060.00614.63
7.2.150.0070.00716.82
7.2.140.0150.00016.65
7.2.130.0060.00616.56
7.2.120.0090.00616.89
7.2.110.0030.00616.98
7.2.100.0040.01116.91
7.2.90.0000.01516.80
7.2.80.0000.01516.63
7.2.70.0100.00716.91
7.2.60.0000.01016.87
7.2.50.0070.00716.92
7.2.40.0080.00517.04
7.2.30.0000.01417.10
7.2.20.0030.00716.97
7.2.10.0060.01016.88
7.2.00.0030.01218.16
7.1.330.0000.01515.80
7.1.320.0040.00815.69
7.1.310.0030.00615.54
7.1.300.0100.00315.71
7.1.290.0030.01015.71
7.1.280.0040.00815.75
7.1.270.0070.00715.69
7.1.260.0040.01115.61
7.1.250.0030.01315.89
7.1.100.0000.01118.17
7.1.70.0070.00717.17
7.1.60.0110.00319.43
7.1.50.0090.01216.50
7.1.00.0000.04022.44
7.0.200.0220.00416.52
7.0.140.0100.06722.01
7.0.60.0030.08719.93
7.0.50.0100.04017.91
7.0.40.0130.07720.09
7.0.30.0230.08020.17
7.0.20.0270.05320.09
7.0.10.0070.04020.09
7.0.00.0070.04319.95
5.6.280.0000.07721.06
5.6.210.0070.03720.70
5.6.200.0030.05318.18
5.6.190.0070.04020.33
5.6.180.0330.07720.60
5.6.170.0170.04720.49
5.6.160.0170.08020.48
5.6.150.0100.06318.11
5.6.140.0100.06718.09
5.6.130.0070.05018.11
5.6.120.0070.08320.98
5.6.110.0100.04021.08
5.6.100.0230.07020.97
5.6.90.0070.08021.00
5.6.80.0130.07720.39
5.5.350.4170.03720.29
5.5.340.0000.06017.99
5.5.330.0030.07720.07
5.5.320.0400.06720.41
5.5.310.0300.07320.32
5.5.300.0000.05017.87
5.5.290.0130.04017.98
5.5.280.0100.05020.88
5.5.270.0030.04020.86
5.5.260.0030.05720.83
5.5.250.0070.08720.57
5.5.240.0270.03720.03
5.4.450.0270.07719.55
5.4.440.0300.04319.41
5.4.430.0230.04319.48
5.4.420.0300.06319.21
5.4.410.0400.04019.43
5.4.400.0330.06019.21
5.4.390.0230.05719.21
5.4.380.0270.04718.80
5.4.370.0270.05319.08
5.4.360.0430.05718.89
5.4.350.0270.03319.06
5.4.340.0330.05318.92
5.4.320.0330.05719.12
5.4.310.0300.03719.25
5.4.300.0230.07718.80
5.4.290.0270.05319.09
5.4.280.0230.04019.16
5.4.270.0230.03718.91
5.4.260.0230.04719.22
5.4.250.0270.05719.23
5.4.240.0370.06319.05
5.4.230.0330.06018.88
5.4.220.0230.04718.91
5.4.210.0230.03718.93
5.4.200.0300.07019.11
5.4.190.0230.05319.24
5.4.180.0230.07318.77
5.4.170.0270.07719.20
5.4.160.0300.07019.20
5.4.150.0270.05018.78
5.4.140.0400.03316.34
5.4.130.0370.06316.43
5.4.120.0200.04016.37
5.4.110.0170.04016.30
5.4.100.0330.02716.46
5.4.90.0200.03716.18
5.4.80.0230.04316.41
5.4.70.0270.06016.39
5.4.60.0230.03316.40
5.4.50.0200.03716.20
5.4.40.0300.04016.18
5.4.30.0270.04016.36
5.4.20.0230.05016.04
5.4.10.0300.03716.45
5.4.00.0100.04315.82
5.3.290.0170.04714.62
5.3.280.0200.04314.45
5.3.270.0270.04714.46
5.3.260.0200.07314.62
5.3.250.0130.04014.46
5.3.240.0230.04014.43
5.3.230.0130.04714.44
5.3.220.0200.04014.55
5.3.210.0200.03714.37
5.3.200.0170.03714.40
5.3.190.0200.04314.39
5.3.180.0230.04714.54
5.3.170.0200.04014.43
5.3.160.0130.04714.60
5.3.150.0270.05714.49
5.3.140.0270.03714.61
5.3.130.0300.06714.55
5.3.120.0270.07314.45
5.3.110.0230.06014.63
5.3.100.0200.04013.91
5.3.90.0200.04313.93
5.3.80.0230.03713.79
5.3.70.0270.07314.03
5.3.60.0270.04013.85
5.3.50.0270.05313.99
5.3.40.0100.04714.04
5.3.30.0200.03713.81
5.3.20.0100.04313.55
5.3.10.0200.03713.51
5.3.00.0170.04713.54
5.2.170.0070.03712.69
5.2.160.0200.03012.69
5.2.150.0270.05012.69
5.2.140.0170.02712.69
5.2.130.0200.02312.69
5.2.120.0200.02312.69
5.2.110.0230.02312.69
5.2.100.0230.02712.69
5.2.90.0270.04312.69
5.2.80.0200.04712.69
5.2.70.0270.04012.69
5.2.60.0170.03012.69
5.2.50.0230.05312.69
5.2.40.0230.05012.69
5.2.30.0230.06312.69
5.2.20.0130.04012.69
5.2.10.0200.02712.69
5.2.00.0170.03712.69
5.1.60.0200.05012.69
5.1.50.0130.02712.69
5.1.40.0170.02312.69
5.1.30.0270.01312.69
5.1.20.0200.04312.69
5.1.10.0230.05012.69
5.1.00.0170.05312.69
5.0.50.0100.02012.69
5.0.40.0070.02712.69
5.0.30.0170.05312.69
5.0.20.0070.03312.69
5.0.10.0070.04012.69
5.0.00.0030.03312.69
4.4.90.0030.02012.69
4.4.80.0030.01712.69
4.4.70.0170.02712.69
4.4.60.0130.02712.69
4.4.50.0100.03312.69
4.4.40.0030.03012.69
4.4.30.0100.03312.69
4.4.20.0100.03012.69
4.4.10.0070.02712.69
4.4.00.0070.05312.69
4.3.110.0130.03012.69
4.3.100.0070.04012.69
4.3.90.0070.03312.69
4.3.80.0100.04312.69
4.3.70.0100.03012.69
4.3.60.0070.02012.69
4.3.50.0100.03312.69
4.3.40.0130.03012.69
4.3.30.0030.01712.69
4.3.20.0070.01312.69
4.3.10.0070.01312.69
4.3.00.0070.01712.69

preferences:
38.18 ms | 401 KiB | 5 Q