3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a = "0"; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・文字列、配列、数値の0 */ echo empty($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)
8.3.60.0100.01018.56
8.3.50.0070.00716.17
8.3.40.0110.00718.75
8.3.30.0150.00018.45
8.3.20.0070.00024.18
8.3.10.0060.00324.66
8.3.00.0050.00326.16
8.2.180.0060.01025.92
8.2.170.0040.01119.01
8.2.160.0100.00322.96
8.2.150.0000.00825.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0090.00417.36
8.2.110.0060.00320.40
8.2.100.0070.00517.75
8.2.90.0050.00317.75
8.2.80.0050.00318.67
8.2.70.0040.00417.93
8.2.60.0060.00318.03
8.2.50.0080.00018.10
8.2.40.0060.00321.14
8.2.30.0070.00019.25
8.2.20.0020.00517.97
8.2.10.0040.00419.15
8.2.00.0000.00819.22
8.1.280.0040.01125.92
8.1.270.0030.00523.99
8.1.260.0090.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00020.63
8.1.230.0090.00322.08
8.1.220.0040.00417.79
8.1.210.0060.00318.77
8.1.200.0090.00017.13
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0040.00418.59
8.1.160.0040.00419.00
8.1.150.0070.00018.78
8.1.140.0070.00018.80
8.1.130.0070.00020.11
8.1.120.0000.00717.38
8.1.110.0030.00717.45
8.1.100.0030.00517.50
8.1.90.0000.00717.33
8.1.80.0040.00417.40
8.1.70.0000.00717.43
8.1.60.0060.00317.55
8.1.50.0000.00717.47
8.1.40.0000.00717.54
8.1.30.0000.00917.53
8.1.20.0080.00017.66
8.1.10.0000.00817.46
8.1.00.0000.00917.45
8.0.300.0000.00918.77
8.0.290.0070.00016.75
8.0.280.0070.00018.49
8.0.270.0040.00416.80
8.0.260.0030.00318.54
8.0.250.0000.00716.86
8.0.240.0030.00317.00
8.0.230.0000.00716.79
8.0.220.0040.00416.83
8.0.210.0070.00016.82
8.0.200.0070.00016.89
8.0.190.0040.00416.95
8.0.180.0030.00416.90
8.0.170.0060.00316.86
8.0.160.0000.00716.96
8.0.150.0030.00616.64
8.0.140.0070.00016.83
8.0.130.0030.00313.37
8.0.120.0000.00716.73
8.0.110.0040.00416.81
8.0.100.0000.00816.77
8.0.90.0040.00416.82
8.0.80.0080.01216.90
8.0.70.0030.00616.78
8.0.60.0040.00416.75
8.0.50.0030.00416.85
8.0.30.0120.00417.05
8.0.20.0070.01316.89
8.0.10.0120.00616.82
8.0.00.0110.01516.84
7.4.330.0060.00015.55
7.4.320.0000.00616.42
7.4.300.0000.00616.33
7.4.290.0000.00716.46
7.4.280.0050.00616.51
7.4.270.0000.00716.43
7.4.260.0050.00013.12
7.4.250.0030.00316.47
7.4.240.0000.00716.50
7.4.230.0030.00316.62
7.4.220.0030.00316.39
7.4.210.0060.01016.49
7.4.200.0050.00316.50
7.4.140.0130.00316.26
7.4.130.0120.00616.32
7.4.120.0120.00616.12
7.4.110.0120.00916.02
7.4.100.0140.00716.51
7.4.90.0110.00716.33
7.4.80.0130.00316.09
7.4.70.0140.00416.41
7.4.60.0110.00716.36
7.4.50.0060.01216.29
7.4.40.0090.01315.95
7.4.30.0090.00916.26
7.4.20.0030.01416.03
7.4.10.0100.00715.94
7.4.00.0070.01016.19
7.3.330.0030.00316.18
7.3.320.0000.00613.10
7.3.310.0040.00416.25
7.3.300.0030.00316.14
7.3.290.0080.00816.19
7.3.260.0140.00716.38
7.3.250.0120.00616.04
7.3.240.0070.01015.69
7.3.230.0140.00716.21
7.3.220.0030.01316.28
7.3.210.0070.01016.06
7.3.200.0060.01116.33
7.3.190.0150.00316.07
7.3.180.0030.01316.10
7.3.170.0090.00916.25
7.3.160.0110.01116.06
7.3.150.0100.00715.92
7.3.140.0100.01316.41
7.3.130.0160.00016.17
7.3.120.0070.01016.09
7.3.110.0090.01216.21
7.3.100.0030.01315.75
7.3.90.0130.00915.82
7.3.80.0120.00916.20
7.3.70.0050.01216.13
7.3.60.0130.00316.15
7.3.50.0140.00416.15
7.3.40.0170.00416.20
7.3.30.0000.01815.97
7.3.20.0100.00816.11
7.3.10.0090.00616.04
7.3.00.0060.01616.11

preferences:
62.82 ms | 401 KiB | 5 Q