3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = ''; // Evaluates to true because $var is empty if (empty($var)) { echo '$var is either 0, empty, or not set at all'; } // Evaluates as true because $var is set if (isset($var)) { echo '$var is set even though it is empty'; }

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)
8.3.40.0040.01118.71
8.3.30.0140.00018.91
8.3.20.0070.00020.38
8.3.10.0040.00423.66
8.3.00.0080.00020.77
8.2.170.0090.00922.96
8.2.160.0100.00320.34
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0110.00326.16
8.2.120.0030.00522.25
8.2.110.0060.01022.25
8.2.100.0040.00817.72
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0090.00017.93
8.2.50.0090.00018.07
8.2.40.0080.00018.16
8.2.30.0050.00317.94
8.2.20.0050.00317.59
8.2.10.0000.00717.68
8.2.00.0070.00017.64
8.1.270.0070.00023.92
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0100.01323.84
8.1.230.0070.00318.77
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00316.99
8.1.190.0040.00417.40
8.1.180.0050.00318.10
8.1.170.0040.00418.46
8.1.160.0000.00721.86
8.1.150.0050.00218.61
8.1.140.0040.00417.33
8.1.130.0000.00717.80
8.1.120.0030.00517.42
8.1.110.0000.00817.36
8.1.100.0030.00417.45
8.1.90.0030.00417.42
8.1.80.0000.00717.28
8.1.70.0000.00717.24
8.1.60.0030.00617.47
8.1.50.0070.00017.49
8.1.40.0030.00617.37
8.1.30.0030.00517.51
8.1.20.0030.00517.52
8.1.10.0000.00817.41
8.1.00.0000.00917.42
8.0.300.0050.00218.77
8.0.290.0050.00217.18
8.0.280.0070.00018.53
8.0.270.0030.00317.23
8.0.260.0030.00316.80
8.0.250.0000.00616.93
8.0.240.0080.00316.84
8.0.230.0040.00416.83
8.0.220.0000.00716.79
8.0.210.0070.00016.84
8.0.200.0000.00616.76
8.0.190.0040.00416.89
8.0.180.0000.00816.90
8.0.170.0040.00416.74
8.0.160.0030.00516.87
8.0.150.0030.00316.75
8.0.140.0000.00716.79
8.0.130.0030.00313.21
8.0.120.0060.00316.80
8.0.110.0040.00416.81
8.0.100.0070.00016.88
8.0.90.0070.00016.67
8.0.80.0040.01116.77
8.0.70.0040.00416.82
8.0.60.0000.00716.75
8.0.50.0040.00416.80
8.0.30.0150.01116.96
8.0.20.0110.00817.40
8.0.10.0040.01517.40
8.0.00.0130.01016.85
7.4.330.0030.00315.07
7.4.320.0030.00316.52
7.4.300.0030.00316.35
7.4.290.0030.00316.46
7.4.280.0030.00316.37
7.4.270.0030.00316.44
7.4.260.0040.00416.49
7.4.250.0000.00716.38
7.4.240.0020.00616.38
7.4.230.0040.00416.27
7.4.220.0060.01216.54
7.4.210.0080.00716.48
7.4.200.0070.00016.28
7.4.190.0000.00716.62
7.4.160.0080.01016.52
7.4.150.0120.00817.40
7.4.140.0100.01317.70
7.4.130.0100.00916.75
7.4.120.0110.00816.72
7.4.110.0160.01417.01
7.4.100.0190.00816.90
7.4.90.0170.00716.94
7.4.80.0100.00918.40
7.4.70.0090.00916.89
7.4.60.0110.01116.91
7.4.50.0050.00916.85
7.4.40.0070.01120.09
7.4.30.0080.00916.96
7.4.20.0070.01117.40
7.4.10.0150.00317.40
7.4.00.0120.00816.11
7.3.330.0020.00213.06
7.3.320.0050.00012.97
7.3.310.0030.00315.97
7.3.300.0030.00316.13
7.3.290.0080.00616.18
7.3.280.0060.00916.15
7.3.270.0170.00517.40
7.3.260.0130.00916.86
7.3.250.0100.00816.64
7.3.240.0080.01216.76
7.3.230.0110.00616.91
7.3.220.0260.02817.40
7.3.210.0180.00916.88
7.3.200.0190.01918.40
7.3.190.0100.01016.79
7.3.180.0110.00516.79
7.3.170.0090.00816.84
7.3.160.0100.00816.82
7.3.150.0170.00017.40
7.3.140.0140.00417.40
7.3.130.0110.00817.40
7.3.120.0100.00916.07
7.3.110.0080.00516.13
7.3.100.0090.00916.20
7.3.90.0070.00916.07
7.3.80.0050.01016.10
7.3.70.0060.01315.96
7.3.60.0090.00415.96
7.3.50.0040.00916.05
7.3.40.0070.00716.11
7.3.30.0100.00616.01
7.3.20.0100.00317.04
7.3.10.0080.01016.98
7.3.00.0040.01017.01
7.2.340.0890.01717.40
7.2.330.0260.01316.96
7.2.320.0150.01117.00
7.2.310.0110.01517.00
7.2.300.0210.00616.84
7.2.290.0180.00516.86
7.2.280.0180.01517.40
7.2.270.0420.00917.40
7.2.260.0270.00617.40
7.2.250.0280.00617.40
7.2.240.0150.00616.09
7.2.230.0160.00415.94
7.2.220.0150.01216.05
7.2.210.0120.00916.26
7.2.200.0150.00816.23
7.2.190.0140.00716.11
7.2.180.0120.01016.13
7.2.170.0150.00616.16
7.2.160.0120.00816.09
7.2.150.0210.00817.04
7.2.140.0140.00816.94
7.2.130.0140.00917.12
7.2.120.0150.00817.18
7.2.110.0180.00617.11
7.2.100.0180.00617.07
7.2.90.0190.01117.14
7.2.80.0240.01017.20
7.2.70.0150.00917.18
7.2.60.0150.00817.04
7.2.50.0270.00817.18
7.2.40.0130.00917.14
7.2.30.0110.01817.14
7.2.20.0170.00617.21
7.2.10.0120.01017.08
7.2.00.0110.00917.74
7.1.330.0090.01216.54
7.1.320.0140.01116.40
7.1.310.0120.00716.56
7.1.300.0090.01316.53
7.1.290.0160.00716.50
7.1.280.0130.00816.40
7.1.270.0240.00816.53
7.1.260.0120.00616.51
7.1.250.0180.00316.46
7.1.240.0300.00817.40
7.1.230.0220.00617.40
7.1.220.0330.00717.40
7.1.210.0270.00017.40
7.1.200.0180.00816.52
7.1.190.0180.01217.40
7.1.180.0180.01217.40
7.1.170.0290.00817.40
7.1.160.0110.02417.40
7.1.150.0120.02017.40
7.1.140.0240.00717.40
7.1.130.0200.01017.40
7.1.120.0420.01017.40
7.1.110.0180.01217.40
7.1.100.0190.00317.64
7.1.90.0390.00717.40
7.1.80.0250.00817.40
7.1.70.0270.00817.11
7.1.60.0150.01218.34
7.1.50.0110.01617.12
7.1.40.0210.01217.40
7.1.30.0340.00417.40
7.1.20.0310.00317.40
7.1.10.0280.00817.40
7.1.00.0310.03319.87
7.0.330.0390.00817.40
7.0.320.0280.00317.40
7.0.310.0170.01017.40
7.0.300.0230.01017.40
7.0.290.0280.00717.40
7.0.280.0240.00517.40
7.0.270.0290.00317.40
7.0.260.0220.00717.40
7.0.250.0130.01817.40
7.0.240.0180.01417.40
7.0.230.0200.00717.40
7.0.220.0230.00917.40
7.0.210.0130.01817.40
7.0.200.0120.00717.08
7.0.190.0190.01117.40
7.0.180.0240.00717.40
7.0.170.0180.01317.40
7.0.160.0230.01117.40
7.0.150.0210.00617.40
7.0.140.0110.04019.78
7.0.130.0350.00917.40
7.0.120.0240.01217.40
7.0.110.0260.00417.40
7.0.100.0190.00917.40
7.0.90.0210.01817.40
7.0.80.0380.04018.68
7.0.70.0380.04718.67
7.0.60.0330.03418.63
7.0.50.0490.02318.89
7.0.40.0170.03718.73
7.0.30.0130.04818.78
7.0.20.0160.04818.68
7.0.10.0130.04818.70
7.0.00.0130.04618.75
5.6.400.0310.00017.40
5.6.390.0220.01917.40
5.6.380.0160.01117.40
5.6.370.0210.01017.40
5.6.360.0130.02117.40
5.6.350.0290.01017.40
5.6.340.0320.00017.40
5.6.330.0210.01117.40
5.6.320.0190.01117.40
5.6.310.0240.01017.40
5.6.300.0160.02417.40
5.6.290.0160.01317.40
5.6.280.0190.03819.22
5.6.270.0180.01517.40
5.6.260.0220.00817.40
5.6.250.0120.01817.40
5.6.240.0250.01617.40
5.6.230.0140.04018.95
5.6.220.0120.02618.94
5.6.210.0140.04719.03
5.6.200.0140.04919.25
5.6.190.0120.02719.25
5.6.180.0120.03419.22
5.6.170.0180.04919.25
5.6.160.0260.03519.25
5.6.150.0170.04319.29
5.6.140.0180.04119.26
5.6.130.0170.02719.26
5.6.120.0190.02719.21
5.6.110.0150.04919.24
5.6.100.0130.02919.20
5.6.90.0160.02919.27
5.6.80.0120.04318.96
5.6.70.0130.04718.90
5.6.60.0230.03618.85
5.6.50.0160.04218.90
5.6.40.0100.02818.89
5.6.30.0140.02718.86
5.6.20.0130.02918.93
5.6.10.0200.04318.90
5.6.00.0130.02618.89
5.5.380.0200.01217.40
5.5.370.0100.05218.87
5.5.360.0100.04718.89
5.5.350.0110.05918.89
5.5.340.0120.03519.14
5.5.330.0100.03019.15
5.5.320.0110.05219.06
5.5.310.0210.03119.02
5.5.300.0200.03419.15
5.5.290.0160.04319.09
5.5.280.0100.05019.08
5.5.270.0160.04819.13
5.5.260.0160.02319.15
5.5.250.0160.03319.00
5.5.240.0130.03118.83
5.5.230.0080.04118.83
5.5.220.0140.04018.78
5.5.210.0170.03818.83
5.5.200.0150.02418.83
5.5.190.0110.04118.82
5.5.180.0220.03718.79
5.5.170.0250.00517.40
5.5.160.0150.02318.77
5.5.150.0150.02518.71
5.5.140.0160.04518.81
5.5.130.0150.02118.75
5.5.120.0110.02518.76
5.5.110.0200.04018.69
5.5.100.0080.05118.74
5.5.90.0110.04618.72
5.5.80.0170.03018.72
5.5.70.0120.03118.67
5.5.60.0160.02718.72
5.5.50.0150.02618.77
5.5.40.0110.04718.68
5.5.30.0160.03218.72
5.5.20.0150.03318.77
5.5.10.0180.03518.72
5.5.00.0110.04318.67
5.4.450.0120.02618.41
5.4.440.0100.02818.34
5.4.430.0140.04118.40
5.4.420.0130.03218.38
5.4.410.0090.03918.31
5.4.400.0120.02318.17
5.4.390.0090.02718.31
5.4.380.0090.03318.21
5.4.370.0060.03618.19
5.4.360.0150.02518.26
5.4.350.0100.02418.23
5.4.340.0080.02818.12
5.4.330.0180.00517.40
5.4.320.0130.02518.09
5.4.310.0100.03318.25
5.4.300.0140.04218.21
5.4.290.0150.02018.25
5.4.280.0120.04018.18
5.4.270.0140.02518.22
5.4.260.0150.03218.25
5.4.250.0110.03718.22
5.4.240.0110.04618.15
5.4.230.0110.03018.22
5.4.220.0130.02118.31
5.4.210.0150.04318.15
5.4.200.0160.02718.25
5.4.190.0110.02718.17
5.4.180.0110.04118.22
5.4.170.0130.03818.23
5.4.160.0050.04318.24
5.4.150.0030.03218.16
5.4.140.0060.04116.88
5.4.130.0080.04116.89
5.4.120.0110.04016.88
5.4.110.0150.02816.80
5.4.100.0080.03416.91
5.4.90.0050.02516.83
5.4.80.0110.03316.80
5.4.70.0100.04016.91
5.4.60.0060.04116.79
5.4.50.0080.02816.88
5.4.40.0080.04016.90
5.4.30.0040.03116.90
5.4.20.0050.02316.86
5.4.10.0060.02516.80
5.4.00.0060.02316.62
5.3.290.0140.03516.01
5.3.280.0140.03815.91
5.3.270.0130.04115.97
5.3.260.0060.04315.93
5.3.250.0090.03915.99
5.3.240.0060.04315.94
5.3.230.0140.03615.97
5.3.220.0050.04615.95
5.3.210.0060.04215.90
5.3.200.0100.03515.91
5.3.190.0080.02315.97
5.3.180.0110.03815.89
5.3.170.0050.03115.90
5.3.160.0090.03615.97
5.3.150.0090.03915.95
5.3.140.0070.02415.97
5.3.130.0110.03415.97
5.3.120.0050.02415.97
5.3.110.0030.02515.95
5.3.100.0060.02315.71
5.3.90.0140.03315.69
5.3.80.0050.04315.68
5.3.70.0070.04015.58
5.3.60.0050.03115.70
5.3.50.0070.04015.55
5.3.40.0090.03715.66
5.3.30.0060.03015.58
5.3.20.0050.03015.53
5.3.10.0050.03415.52
5.3.00.0130.03315.51

preferences:
42.93 ms | 400 KiB | 5 Q