3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a[1] = "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 */ echo $a[0]; echo empty($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)
8.3.60.0040.01118.55
8.3.50.0110.00416.29
8.3.40.0090.00618.89
8.3.30.0060.00918.97
8.3.20.0030.00624.18
8.3.10.0090.00024.66
8.3.00.0040.00426.16
8.2.180.0070.01425.92
8.2.170.0090.00919.13
8.2.160.0040.01122.96
8.2.150.0080.00025.66
8.2.140.0070.00024.66
8.2.130.0050.00226.16
8.2.120.0070.00026.35
8.2.110.0040.00420.42
8.2.100.0090.00319.77
8.2.90.0080.00017.88
8.2.80.0030.00618.95
8.2.70.0000.00818.05
8.2.60.0030.00718.34
8.2.50.0060.00318.10
8.2.40.0000.00821.02
8.2.30.0000.00819.22
8.2.20.0040.00418.13
8.2.10.0000.00719.13
8.2.00.0050.00319.26
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0050.00328.09
8.1.250.0000.00728.09
8.1.240.0090.00023.97
8.1.230.0120.00022.68
8.1.220.0030.00517.74
8.1.210.0060.00318.77
8.1.200.0060.00317.48
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0020.00518.54
8.1.160.0040.00418.95
8.1.150.0040.00418.78
8.1.140.0000.00718.89
8.1.130.0000.00720.18
8.1.120.0040.00417.36
8.1.110.0040.00717.34
8.1.100.0000.00717.29
8.1.90.0000.00717.41
8.1.80.0110.00017.38
8.1.70.0030.00317.35
8.1.60.0000.00717.38
8.1.50.0000.00717.44
8.1.40.0050.00217.34
8.1.30.0030.00517.42
8.1.20.0040.00417.50
8.1.10.0040.00417.39
8.1.00.0000.00817.42
8.0.300.0050.00318.77
8.0.290.0080.00016.61
8.0.280.0000.00818.38
8.0.270.0060.00316.75
8.0.260.0000.00618.55
8.0.250.0000.00716.91
8.0.240.0060.00016.97
8.0.230.0070.00016.93
8.0.220.0070.00016.81
8.0.210.0030.00316.82
8.0.200.0040.00416.91
8.0.190.0030.00516.86
8.0.180.0070.00016.82
8.0.170.0030.00616.83
8.0.160.0000.00716.85
8.0.150.0030.00516.80
8.0.140.0070.00016.73
8.0.130.0000.00513.27
8.0.120.0000.00816.72
8.0.110.0000.00716.67
8.0.100.0000.00816.77
8.0.90.0050.00316.90
8.0.80.0070.00916.88
8.0.70.0050.00316.75
8.0.60.0000.00716.80
8.0.50.0030.00316.71
8.0.30.0080.00816.92
8.0.20.0100.01016.88
8.0.10.0100.01017.39
8.0.00.0160.01016.84
7.4.330.0040.00015.55
7.4.320.0000.00716.55
7.4.300.0030.00316.40
7.4.290.0030.00316.51
7.4.280.0040.00816.42
7.4.270.0050.00316.43
7.4.260.0050.00013.20
7.4.250.0040.00416.51
7.4.240.0030.00316.34
7.4.230.0030.00316.49
7.4.220.0000.00716.54
7.4.210.0060.00916.49
7.4.200.0000.00716.28
7.4.140.0100.01016.34
7.4.130.0060.01216.43
7.4.120.0090.00916.19
7.4.110.0110.00816.63
7.4.100.0140.00316.50
7.4.90.0070.01016.56
7.4.80.0000.02316.27
7.4.70.0160.00616.29
7.4.60.0070.01416.10
7.4.50.0050.01815.83
7.4.40.0030.01916.52
7.4.30.0030.01416.39
7.4.20.0110.01116.29
7.4.10.0140.00916.13
7.4.00.0100.00716.44
7.3.330.0080.00016.40
7.3.320.0000.00513.16
7.3.310.0040.00416.27
7.3.300.0030.00316.31
7.3.290.0090.00816.33
7.3.260.0110.00816.48
7.3.250.0150.00016.43
7.3.240.0120.00616.35
7.3.230.0140.01116.29
7.3.220.0120.00616.61
7.3.210.0030.01316.45
7.3.200.0150.00916.34
7.3.190.0090.00916.18
7.3.180.0130.01016.21
7.3.170.0110.01116.42
7.3.160.0080.00816.36
7.3.150.0170.00016.13
7.3.140.0160.00316.31
7.3.130.0070.01016.22
7.3.120.0150.00816.00
7.3.110.0170.00716.30
7.3.100.0100.01016.20
7.3.90.0120.00916.38
7.3.80.0090.01316.36
7.3.70.0000.02116.58
7.3.60.0110.00916.48
7.3.50.0080.00816.32
7.3.40.0120.00816.23
7.3.30.0080.01216.38
7.3.20.0120.00916.38
7.3.10.2920.01016.31
7.3.00.0040.01416.36

preferences:
71.74 ms | 401 KiB | 5 Q