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run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a[] = "000"; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・配列、数値の0 */ print a; echo empty($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)
8.3.40.0130.00318.83
8.3.30.0070.00718.84
8.3.20.0060.00324.18
8.3.10.0070.00424.66
8.3.00.0040.00426.16
8.2.170.0070.01318.91
8.2.160.0070.00722.96
8.2.150.0000.00825.66
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0080.00026.35
8.2.110.0000.01022.20
8.2.100.0080.00317.77
8.2.90.0060.00317.75
8.2.80.0000.00918.75
8.2.70.0050.00317.99
8.2.60.0050.00518.03
8.2.50.0050.00318.10
8.2.40.0030.00521.07
8.2.30.0060.00319.19
8.2.20.0000.00718.04
8.2.10.0070.00019.24
8.2.00.0040.00419.35
8.1.270.0040.00423.99
8.1.260.0080.00028.09
8.1.250.0000.00728.09
8.1.240.0180.00423.97
8.1.230.0080.00422.68
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0050.00317.22
8.1.180.0050.00318.10
8.1.170.0050.00318.65
8.1.160.0000.00819.06
8.1.150.0050.00218.84
8.1.140.0040.00418.90
8.1.130.0000.00720.09
8.1.120.0030.00517.39
8.1.110.0090.00017.42
8.1.100.0000.00817.47
8.1.90.0040.00417.46
8.1.80.0050.00517.50
8.1.70.0030.00317.37
8.1.60.0000.00717.50
8.1.50.0000.00817.53
8.1.40.0050.00217.52
8.1.30.0000.00817.64
8.1.20.0040.00417.59
8.1.10.0030.00617.55
8.1.00.0000.00817.47
8.0.300.0040.00818.77
8.0.290.0000.00816.75
8.0.280.0000.00718.46
8.0.270.0000.00716.88
8.0.260.0030.00318.44
8.0.250.0070.00016.93
8.0.240.0030.00316.96
8.0.230.0030.00316.99
8.0.220.0040.00416.88
8.0.210.0040.00416.93
8.0.200.0000.00717.02
8.0.190.0040.00416.84
8.0.180.0000.00716.85
8.0.170.0000.00916.99
8.0.160.0030.00316.97
8.0.150.0000.00816.85
8.0.140.0000.00716.91
8.0.130.0060.00013.34
8.0.120.0030.00516.93
8.0.110.0040.00416.91
8.0.100.0070.00016.99
8.0.90.0030.00617.07
8.0.80.0130.00516.86
8.0.70.0020.00516.83
8.0.60.0030.00516.80
8.0.50.0000.00816.80
8.0.30.0030.01317.04
8.0.20.0150.01117.06
8.0.10.0130.00817.32
8.0.00.0110.01517.07
7.4.330.0030.00315.55
7.4.320.0000.00716.50
7.4.300.0060.00016.46
7.4.290.0050.00316.50
7.4.280.0060.00316.43
7.4.270.0070.00016.38
7.4.260.0030.00313.11
7.4.250.0030.00516.40
7.4.240.0030.00316.46
7.4.230.0000.00716.34
7.4.220.0000.00716.49
7.4.210.0110.00716.50
7.4.200.0000.00816.55
7.4.140.0100.00716.57
7.4.130.0160.00616.45
7.4.120.0150.01116.39
7.4.110.0130.01316.52
7.4.100.0160.00916.50
7.4.90.0130.01016.44
7.4.80.0040.01416.30
7.4.70.0090.01316.26
7.4.60.0100.01016.14
7.4.50.0090.01215.97
7.4.40.0110.00716.44
7.4.30.0150.00316.50
7.4.20.0080.00816.34
7.4.10.0080.01116.20
7.4.00.0170.00616.33
7.3.330.0030.00316.15
7.3.320.0000.00613.19
7.3.310.0040.00416.30
7.3.300.0070.00016.25
7.3.290.0110.00416.25
7.3.260.0040.01116.26
7.3.250.0160.00616.15
7.3.240.0150.00615.79
7.3.230.0080.01816.47
7.3.220.0090.00916.36
7.3.210.0140.00516.35
7.3.200.0090.01316.37
7.3.190.0070.01416.16
7.3.180.0070.01416.26
7.3.170.0030.01616.27
7.3.160.0050.01116.50
7.3.150.0070.01116.12
7.3.140.0100.00716.18
7.3.130.0060.01216.13
7.3.120.0040.01716.04
7.3.110.0080.00816.54
7.3.100.0170.00616.54
7.3.90.0110.00516.40
7.3.80.0140.00316.30
7.3.70.0120.00816.40
7.3.60.0140.00716.23
7.3.50.0110.01116.18
7.3.40.0170.00416.37
7.3.30.0140.00816.39
7.3.20.0180.00716.39
7.3.10.0060.01616.30
7.3.00.0160.00616.43

preferences:
56 ms | 400 KiB | 5 Q