3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a[0] = "0"; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・配列、数値の0 */ echo empty($a[0]).PHP_EOL; 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)
8.3.40.0140.00319.02
8.3.30.0060.01018.85
8.3.20.0040.00424.18
8.3.10.0070.00324.66
8.3.00.0040.00426.16
8.2.170.0120.00319.13
8.2.160.0110.00322.96
8.2.150.0050.00325.66
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0070.00026.35
8.2.110.0090.00020.53
8.2.100.0090.00319.52
8.2.90.0050.00317.63
8.2.80.0000.01118.71
8.2.70.0030.00617.63
8.2.60.0050.00317.63
8.2.50.0040.00418.05
8.2.40.0040.00418.09
8.2.30.0000.00718.04
8.2.20.0000.00718.00
8.2.10.0000.00719.25
8.2.00.0040.00419.25
8.1.270.0030.00523.99
8.1.260.0050.00328.09
8.1.250.0040.00428.09
8.1.240.0040.00420.88
8.1.230.0060.00622.57
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0000.00817.35
8.1.190.0060.00317.35
8.1.180.0030.00518.10
8.1.170.0060.00318.76
8.1.160.0040.00418.90
8.1.150.0070.00018.88
8.1.140.0040.00418.79
8.1.130.0030.00320.18
8.1.120.0070.00017.33
8.1.110.0000.00917.36
8.1.100.0080.00017.37
8.1.90.0000.00817.29
8.1.80.0070.00017.27
8.1.70.0070.00017.27
8.1.60.0000.00717.54
8.1.50.0030.00517.47
8.1.40.0050.00217.35
8.1.30.0040.00417.42
8.1.20.0000.00817.55
8.1.10.0030.00617.52
8.1.00.0080.00017.46
8.0.300.0030.00518.77
8.0.290.0040.00416.75
8.0.280.0070.00018.42
8.0.270.0030.00317.98
8.0.260.0000.00618.58
8.0.250.0080.00016.92
8.0.240.0030.00316.79
8.0.230.0030.00316.88
8.0.220.0030.00316.82
8.0.210.0000.00716.87
8.0.200.0040.00416.85
8.0.190.0040.00416.87
8.0.180.0070.00016.84
8.0.170.0040.00416.86
8.0.160.0050.00316.84
8.0.150.0040.00416.72
8.0.140.0040.00416.79
8.0.130.0060.00013.30
8.0.120.0000.00816.71
8.0.110.0040.00416.87
8.0.100.0040.00416.79
8.0.90.0040.00416.71
8.0.80.0120.00516.80
8.0.70.0050.00216.67
8.0.60.0070.00016.82
8.0.50.0000.00816.83
8.0.30.0100.00716.87
8.0.20.0120.00917.15
8.0.10.0150.00317.27
8.0.00.0060.01217.07
7.4.330.0000.00415.55
7.4.320.0030.00316.43
7.4.300.0000.00616.56
7.4.290.0000.00716.32
7.4.280.0040.00916.53
7.4.270.0000.00716.52
7.4.260.0030.00313.14
7.4.250.0040.00416.41
7.4.240.0000.00816.45
7.4.230.0030.00316.52
7.4.220.0030.00316.52
7.4.210.0060.01016.45
7.4.200.0040.00416.41
7.4.140.0100.00716.41
7.4.130.0110.00716.43
7.4.120.0070.01416.32
7.4.110.0110.00716.33
7.4.100.0200.00316.54
7.4.90.0120.00916.40
7.4.80.0120.01316.52
7.4.70.0140.00416.19
7.4.60.0030.01416.02
7.4.50.0130.01015.91
7.4.40.0200.00016.34
7.4.30.0140.00316.52
7.4.20.0090.00916.21
7.4.10.0040.01416.25
7.4.00.0090.01216.40
7.3.330.0030.00316.38
7.3.320.0020.00213.20
7.3.310.0040.00416.45
7.3.300.0060.00016.30
7.3.290.0040.01116.35
7.3.260.0100.00716.31
7.3.250.0070.01016.21
7.3.240.0180.00316.28
7.3.230.0100.00716.50
7.3.220.0160.00316.56
7.3.210.0100.01416.61
7.3.200.0140.01116.24
7.3.190.0040.01315.94
7.3.180.0120.00616.05
7.3.170.0110.01116.20
7.3.160.0150.00316.22
7.3.150.0170.00016.08
7.3.140.0030.01416.22
7.3.130.0000.01916.44
7.3.120.0170.00615.99
7.3.110.0100.01316.29
7.3.100.0130.01016.34
7.3.90.0100.01316.63
7.3.80.0110.01416.27
7.3.70.0080.01616.34
7.3.60.0040.01416.32
7.3.50.0080.01116.48
7.3.40.0090.01516.34
7.3.30.0030.01316.45
7.3.20.0070.01016.26
7.3.10.0060.01216.53
7.3.00.0100.00716.36

preferences:
64.13 ms | 400 KiB | 5 Q