3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・文字列、配列、数値の0 */ echo empty($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)
8.3.60.0070.00718.55
8.3.50.0110.00416.36
8.3.40.0120.00318.63
8.3.30.0040.01218.59
8.3.20.0050.00224.18
8.3.10.0000.01124.66
8.3.00.0040.00426.16
8.2.180.0110.01125.92
8.2.170.0070.00719.01
8.2.160.0110.00422.96
8.2.150.0000.00925.66
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0070.00026.35
8.2.110.0100.00020.87
8.2.100.0040.00817.72
8.2.90.0080.00017.61
8.2.80.0050.00318.38
8.2.70.0000.00817.50
8.2.60.0000.00817.50
8.2.50.0030.00618.05
8.2.40.0080.00017.82
8.2.30.0000.00718.04
8.2.20.0030.00517.99
8.2.10.0050.00218.96
8.2.00.0000.00819.11
8.1.280.0120.00325.92
8.1.270.0050.00323.99
8.1.260.0040.00428.09
8.1.250.0050.00228.09
8.1.240.0060.00319.09
8.1.230.0070.00423.96
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0030.00617.22
8.1.190.0040.00417.10
8.1.180.0040.00418.10
8.1.170.0040.00418.91
8.1.160.0080.00018.74
8.1.150.0040.00418.73
8.1.140.0070.00018.73
8.1.130.0040.00417.35
8.1.120.0000.00717.39
8.1.110.0040.00817.39
8.1.100.0060.00317.35
8.1.90.0000.00717.27
8.1.80.0060.00617.28
8.1.70.0030.00317.39
8.1.60.0070.00017.46
8.1.50.0000.00717.34
8.1.40.0000.00817.40
8.1.30.0050.00317.41
8.1.20.0030.00517.40
8.1.10.0000.00817.46
8.1.00.0040.00417.26
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0040.00418.32
8.0.270.0080.00017.78
8.0.260.0000.00716.69
8.0.250.0070.00016.79
8.0.240.0000.00716.74
8.0.230.0040.00416.91
8.0.220.0030.00316.75
8.0.210.0000.00716.88
8.0.200.0050.00316.78
8.0.190.0000.00816.73
8.0.180.0000.00816.88
8.0.170.0100.00016.85
8.0.160.0070.00016.79
8.0.150.0000.00716.87
8.0.140.0040.00416.77
8.0.130.0030.00313.26
8.0.120.0030.00516.74
8.0.110.0070.00016.76
8.0.100.0000.00716.81
8.0.90.0070.00016.82
8.0.80.0100.01116.77
8.0.70.0040.00416.61
8.0.60.0030.00516.74
8.0.50.0070.00016.64
8.0.30.0110.00417.14
8.0.20.0140.00316.84
8.0.10.0120.01316.61
8.0.00.0110.00716.82
7.4.330.0000.00515.55
7.4.320.0060.00016.47
7.4.300.0000.00616.47
7.4.290.0030.00516.38
7.4.280.0030.00616.46
7.4.270.0030.00316.36
7.4.260.0000.00513.13
7.4.250.0030.00316.32
7.4.240.0050.00316.32
7.4.230.0030.00316.20
7.4.220.0000.00716.49
7.4.210.0090.00616.45
7.4.200.0070.00016.26
7.4.140.0100.01016.27
7.4.130.0120.00616.27
7.4.120.0080.00816.16
7.4.110.0100.01116.15
7.4.100.0090.00916.05
7.4.90.0160.00516.27
7.4.80.0110.01016.31
7.4.70.0120.00816.25
7.4.60.0150.00616.35
7.4.50.0110.01416.37
7.4.40.0150.00915.97
7.4.30.0070.01416.05
7.4.20.0140.00915.89
7.4.10.0090.01216.06
7.4.00.0130.00616.32
7.3.330.0030.00316.01
7.3.320.0030.00312.93
7.3.310.0040.00416.23
7.3.300.0070.00016.18
7.3.290.0050.00816.19
7.3.260.0070.01016.27
7.3.250.0130.00616.18
7.3.240.0040.01615.99
7.3.230.0110.00716.08
7.3.220.0100.00916.26
7.3.210.0170.00316.22
7.3.200.0140.00316.38
7.3.190.0060.01316.07
7.3.180.0130.01316.28
7.3.170.0080.01316.18
7.3.160.0110.01116.13
7.3.150.0110.01416.03
7.3.140.0040.01316.28
7.3.130.0080.01116.12
7.3.120.0140.01216.03
7.3.110.0070.01416.04
7.3.100.0140.00715.89
7.3.90.0160.00915.92
7.3.80.0110.00816.05
7.3.70.0100.01016.09
7.3.60.0120.00916.11
7.3.50.0180.00316.05
7.3.40.0130.00616.22
7.3.30.0130.00916.24
7.3.20.0190.00416.25
7.3.10.0090.01416.17
7.3.00.0130.01016.07

preferences:
62 ms | 401 KiB | 5 Q