3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a =NULL; $b =FALSE; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・文字列、配列、数値の0 */ echo empty($a).PHP_EOL; echo empty($b).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)
8.3.60.0030.01018.30
8.3.50.0140.00016.32
8.3.40.0040.01118.75
8.3.30.0140.00418.59
8.3.20.0080.00024.18
8.3.10.0030.00624.66
8.3.00.0080.00026.16
8.2.180.0140.00725.92
8.2.170.0140.00719.08
8.2.160.0100.00322.96
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0040.00426.35
8.2.110.0060.00320.93
8.2.100.0050.00517.72
8.2.90.0050.00317.63
8.2.80.0060.00318.70
8.2.70.0050.00317.63
8.2.60.0050.00317.38
8.2.50.0000.01218.05
8.2.40.0030.00618.22
8.2.30.0000.00717.94
8.2.20.0000.00718.10
8.2.10.0030.00519.16
8.2.00.0040.00419.02
8.1.280.0190.00025.92
8.1.270.0000.00823.99
8.1.260.0000.00828.09
8.1.250.0070.00028.09
8.1.240.0040.00723.75
8.1.230.0120.00022.82
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0030.00517.35
8.1.190.0050.00317.10
8.1.180.0000.00718.10
8.1.170.0030.00519.01
8.1.160.0070.00018.73
8.1.150.0040.00418.80
8.1.140.0070.00018.88
8.1.130.0000.00720.07
8.1.120.0080.00017.44
8.1.110.0090.00017.48
8.1.100.0030.00517.32
8.1.90.0000.00717.37
8.1.80.0050.00517.46
8.1.70.0070.00017.38
8.1.60.0080.00017.54
8.1.50.0000.00817.40
8.1.40.0000.00717.56
8.1.30.0030.00617.67
8.1.20.0040.00417.48
8.1.10.0060.00317.41
8.1.00.0000.00717.44
8.0.300.0000.00718.77
8.0.290.0000.00916.75
8.0.280.0080.00018.44
8.0.270.0000.00817.92
8.0.260.0000.00618.56
8.0.250.0050.00316.91
8.0.240.0000.00716.99
8.0.230.0060.00016.88
8.0.220.0040.00416.76
8.0.210.0000.00716.88
8.0.200.0040.00416.86
8.0.190.0040.00416.83
8.0.180.0070.00016.90
8.0.170.0000.00916.78
8.0.160.0040.00416.84
8.0.150.0000.00816.74
8.0.140.0000.00716.85
8.0.130.0000.00513.30
8.0.120.0000.00816.75
8.0.110.0050.00316.71
8.0.100.0050.00316.95
8.0.90.0040.00416.75
8.0.80.0050.01116.77
8.0.70.0040.00416.77
8.0.60.0040.00416.89
8.0.50.0050.00316.72
8.0.30.0000.01517.20
8.0.20.0100.01017.00
8.0.10.0060.01317.14
8.0.00.0080.01317.01
7.4.330.0030.00315.55
7.4.320.0060.00016.55
7.4.300.0030.00316.43
7.4.290.0000.00816.48
7.4.280.0030.00616.42
7.4.270.0030.00316.37
7.4.260.0050.00013.25
7.4.250.0030.00516.26
7.4.240.0000.00816.36
7.4.230.0000.00716.60
7.4.220.0020.00516.61
7.4.210.0050.01216.54
7.4.200.0030.00316.62
7.4.140.0130.00616.39
7.4.130.0170.00316.22
7.4.120.0110.00816.01
7.4.110.0090.00916.46
7.4.100.0130.00716.12
7.4.90.0080.01316.26
7.4.80.0170.00615.96
7.4.70.0110.01116.55
7.4.60.0080.01416.23
7.4.50.0040.01916.00
7.4.40.0110.00815.89
7.4.30.0170.00416.41
7.4.20.0080.01316.11
7.4.10.0090.01116.29
7.4.00.0080.01416.20
7.3.330.0070.00016.34
7.3.320.0020.00213.13
7.3.310.0050.00416.03
7.3.300.0060.00016.20
7.3.290.0060.00816.21
7.3.260.0060.01016.58
7.3.250.0140.00516.17
7.3.240.0090.00916.12
7.3.230.0060.01416.21
7.3.220.0040.01516.08
7.3.210.0120.00816.12
7.3.200.0120.00816.13
7.3.190.0170.00616.33
7.3.180.0150.00716.42
7.3.170.0040.01916.05
7.3.160.0160.00016.34
7.3.150.0070.01016.16
7.3.140.0100.01016.16
7.3.130.0100.01016.31
7.3.120.0030.01916.19
7.3.110.0120.00616.09
7.3.100.0110.01416.23
7.3.90.0040.01816.30
7.3.80.0120.00916.21
7.3.70.0100.01316.27
7.3.60.0140.00916.09
7.3.50.0060.01316.03
7.3.40.0170.00316.12
7.3.30.0050.01416.11
7.3.20.0060.01416.29
7.3.10.0120.01116.20
7.3.00.0140.00916.32

preferences:
32.07 ms | 400 KiB | 5 Q