3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a = NULL; $b = "123"; //empty関数 /*以下の場合にTRUE ・空白の数値 ・文字列、配列、数値の0 ・文字列の半角の0 ・NULLやFALSE ・変数が定義されただけの状態*/ $_a=empty($a); echo $_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)
8.3.60.0150.00018.43
8.3.50.0040.01116.48
8.3.40.0040.01418.57
8.3.30.0040.01518.51
8.3.20.0070.00024.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.180.0100.00725.92
8.2.170.0110.00319.01
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0020.00526.35
8.2.110.0090.00020.38
8.2.100.0110.00019.95
8.2.90.0000.00817.63
8.2.80.0090.00018.78
8.2.70.0050.00317.93
8.2.60.0030.00618.03
8.2.50.0030.00518.10
8.2.40.0030.00621.15
8.2.30.0070.00319.30
8.2.20.0070.00018.02
8.2.10.0070.00019.17
8.2.00.0000.00819.29
8.1.280.0150.00025.92
8.1.270.0040.00423.99
8.1.260.0040.00428.09
8.1.250.0020.00528.09
8.1.240.0040.00423.91
8.1.230.0090.00320.81
8.1.220.0050.00317.79
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0060.00317.36
8.1.180.0040.00418.10
8.1.170.0000.00818.38
8.1.160.0000.00718.90
8.1.150.0000.00718.90
8.1.140.0000.00718.86
8.1.130.0030.00319.94
8.1.120.0000.00717.39
8.1.110.0030.00717.34
8.1.100.0000.00817.25
8.1.90.0000.00717.34
8.1.80.0060.00317.32
8.1.70.0040.00417.41
8.1.60.0000.00717.39
8.1.50.0040.00417.44
8.1.40.0040.00417.36
8.1.30.0030.00617.59
8.1.20.0040.00417.43
8.1.10.0030.00617.47
8.1.00.0030.00617.41
8.0.300.0040.00418.77
8.0.290.0000.00816.88
8.0.280.0070.00018.30
8.0.270.0030.00316.86
8.0.260.0000.00618.55
8.0.250.0080.00016.95
8.0.240.0000.00716.95
8.0.230.0040.00416.83
8.0.220.0070.00016.91
8.0.210.0000.00716.87
8.0.200.0030.00316.87
8.0.190.0000.00716.82
8.0.180.0040.00416.82
8.0.170.0030.00516.95
8.0.160.0040.00416.87
8.0.150.0040.00416.85
8.0.140.0040.00416.84
8.0.130.0030.00313.36
8.0.120.0000.00816.73
8.0.110.0070.00016.88
8.0.100.0000.00816.89
8.0.90.0040.00416.72
8.0.80.0050.01116.87
8.0.70.0070.00016.91
8.0.60.0040.00416.77
8.0.50.0050.00216.71
8.0.30.0040.01117.17
8.0.20.0030.01617.05
8.0.10.0070.01616.84
8.0.00.0130.00917.05
7.4.330.0020.00215.55
7.4.320.0060.00016.53
7.4.300.0060.00016.49
7.4.290.0000.00716.36
7.4.280.0100.00016.41
7.4.270.0000.00716.44
7.4.260.0060.00013.08
7.4.250.0030.00316.38
7.4.240.0040.00416.32
7.4.230.0000.00616.32
7.4.220.0050.00216.57
7.4.210.0070.00816.53
7.4.200.0050.00216.52
7.4.140.0090.00916.41
7.4.130.0160.00316.27
7.4.120.0120.00616.17
7.4.110.0070.01015.83
7.4.100.0060.00916.41
7.4.90.0110.00616.32
7.4.80.0150.00816.25
7.4.70.0120.01216.25
7.4.60.0120.00416.45
7.4.50.0090.00616.27
7.4.40.0120.00616.13
7.4.30.0140.00716.38
7.4.20.0090.00616.28
7.4.10.0090.00916.10
7.4.00.0040.01216.45
7.3.330.0030.00316.30
7.3.320.0000.00512.95
7.3.310.0070.00016.25
7.3.300.0070.00016.19
7.3.290.0060.00816.21
7.3.260.0000.01816.54
7.3.250.0060.01216.23
7.3.240.0060.01015.76
7.3.230.0110.00516.04
7.3.220.0100.00716.21
7.3.210.0160.00716.20
7.3.200.0080.00816.26
7.3.190.0250.00016.16
7.3.180.0060.01516.16
7.3.170.0150.00816.33
7.3.160.0140.00216.27
7.3.150.0040.01316.04
7.3.140.0060.01216.30
7.3.130.0080.00816.20
7.3.120.0100.00716.22
7.3.110.0090.00916.31
7.3.100.0150.00016.28
7.3.90.0100.00716.30
7.3.80.0080.01016.23
7.3.70.0130.00516.22
7.3.60.0120.00816.23
7.3.50.0100.01016.16
7.3.40.0110.00916.04
7.3.30.0040.01516.00
7.3.20.0460.00316.23
7.3.10.0160.00816.22
7.3.00.0100.00716.25

preferences:
81.41 ms | 401 KiB | 5 Q