3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a = "000"; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・文字列、配列、数値の0 */ echo empty($a).PHP_EOL;

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)
8.3.60.0070.01018.55
8.3.50.0040.01116.51
8.3.40.0130.00318.54
8.3.30.0070.00718.42
8.3.20.0070.00024.18
8.3.10.0040.00724.66
8.3.00.0050.00326.16
8.2.180.0100.00725.92
8.2.170.0070.00718.83
8.2.160.0140.00022.96
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00426.35
8.2.110.0030.00620.38
8.2.100.0040.00719.89
8.2.90.0040.00417.38
8.2.80.0030.00618.61
8.2.70.0070.00317.88
8.2.60.0090.00018.09
8.2.50.0040.00418.10
8.2.40.0060.00321.06
8.2.30.0080.00019.30
8.2.20.0000.00718.04
8.2.10.0000.00719.16
8.2.00.0000.00819.07
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0080.00028.09
8.1.250.0050.00328.09
8.1.240.0040.00423.70
8.1.230.0090.00322.73
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0070.00417.35
8.1.190.0050.00317.13
8.1.180.0030.00518.10
8.1.170.0060.00318.64
8.1.160.0030.00518.99
8.1.150.0040.00418.89
8.1.140.0000.00718.98
8.1.130.0000.00720.09
8.1.120.0050.00217.36
8.1.110.0060.00317.37
8.1.100.0030.00517.34
8.1.90.0030.00517.34
8.1.80.0000.00717.34
8.1.70.0000.00717.45
8.1.60.0040.00417.48
8.1.50.0040.00417.50
8.1.40.0040.00417.51
8.1.30.0040.00417.59
8.1.20.0000.00917.60
8.1.10.0000.00817.36
8.1.00.0000.00817.36
8.0.300.0040.00418.77
8.0.290.0080.00016.88
8.0.280.0000.00718.34
8.0.270.0050.00516.71
8.0.260.0000.00618.47
8.0.250.0000.00816.98
8.0.240.0060.00016.85
8.0.230.0030.00316.93
8.0.220.0000.00716.85
8.0.210.0070.00016.87
8.0.200.0040.00416.92
8.0.190.0050.00216.96
8.0.180.0080.00016.89
8.0.170.0030.00616.80
8.0.160.0040.00416.85
8.0.150.0040.00416.80
8.0.140.0000.00716.84
8.0.130.0030.00313.23
8.0.120.0080.00016.90
8.0.110.0000.00716.70
8.0.100.0040.00416.82
8.0.90.0040.00416.70
8.0.80.0030.01416.83
8.0.70.0040.00416.73
8.0.60.0040.00416.79
8.0.50.0070.00016.62
8.0.30.0120.00616.95
8.0.20.0110.00716.91
8.0.10.0120.01216.93
8.0.00.0120.00817.19
7.4.330.0060.00015.55
7.4.320.0060.00016.53
7.4.300.0060.00016.35
7.4.290.0030.00516.38
7.4.280.0000.01216.51
7.4.270.0070.00016.48
7.4.260.0020.00213.09
7.4.250.0080.00016.43
7.4.240.0030.00316.61
7.4.230.0030.00316.50
7.4.220.0030.00316.41
7.4.210.0090.00716.49
7.4.200.0050.00316.53
7.4.140.0060.01216.35
7.4.130.0110.00716.16
7.4.120.0100.01016.07
7.4.110.0060.01216.27
7.4.100.0110.00716.44
7.4.90.0140.00316.51
7.4.80.0170.00016.44
7.4.70.0030.01716.40
7.4.60.0110.00816.22
7.4.50.0100.00715.97
7.4.40.0100.01116.25
7.4.30.0190.00316.30
7.4.20.0150.00715.96
7.4.10.0040.01416.27
7.4.00.0140.00416.64
7.3.330.0000.00716.09
7.3.320.0000.00513.13
7.3.310.0000.00716.39
7.3.300.0030.00316.18
7.3.290.0070.00716.24
7.3.260.0130.00416.48
7.3.250.0130.00415.99
7.3.240.0190.00616.29
7.3.230.0120.00616.56
7.3.220.0030.01416.18
7.3.210.0170.00016.21
7.3.200.0070.01116.45
7.3.190.0090.01316.04
7.3.180.0030.01716.27
7.3.170.0140.00316.32
7.3.160.0180.00016.31
7.3.150.0210.00316.24
7.3.140.0120.00516.25
7.3.130.0090.00616.21
7.3.120.0040.01316.02
7.3.110.0080.00916.16
7.3.100.0110.01116.07
7.3.90.0050.01116.53
7.3.80.0140.00316.36
7.3.70.0080.01216.16
7.3.60.0090.00916.34
7.3.50.0070.01316.41
7.3.40.0070.01016.16
7.3.30.0000.01816.10
7.3.20.0340.00016.31
7.3.10.0110.00816.26
7.3.00.0040.01516.20

preferences:
64.59 ms | 401 KiB | 5 Q