3v4l.org

run code in 300+ PHP versions simultaneously
<?php //PHPの関数 //様々な関数 $a[0] = "0"; $b = 0; //empty関数 /*以下の場合にTRUE ・空白の数値 ・NULLやFALSE ・変数が定義されただけの状態 ・文字列の半角の0 ・配列、数値の0 */ echo empty($a[0]).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)
8.3.60.0070.01018.07
8.3.50.0030.01016.29
8.3.40.0120.00618.92
8.3.30.0140.00418.67
8.3.20.0040.00424.18
8.3.10.0000.00924.66
8.3.00.0000.00726.16
8.2.180.0070.01425.92
8.2.170.0170.00018.79
8.2.160.0100.00322.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00026.35
8.2.110.0060.00322.02
8.2.100.0120.00017.84
8.2.90.0040.00418.34
8.2.80.0000.00818.04
8.2.70.0040.00417.63
8.2.60.0060.00317.50
8.2.50.0060.00318.05
8.2.40.0000.00718.28
8.2.30.0020.00518.16
8.2.20.0070.00018.17
8.2.10.0000.00719.24
8.2.00.0050.00319.25
8.1.280.0100.00325.92
8.1.270.0000.00823.99
8.1.260.0080.00028.09
8.1.250.0040.00428.09
8.1.240.0060.00322.20
8.1.230.0070.00419.16
8.1.220.0080.00017.77
8.1.210.0000.00818.77
8.1.200.0040.00417.36
8.1.190.0030.00617.10
8.1.180.0030.00618.10
8.1.170.0080.00019.04
8.1.160.0000.00718.89
8.1.150.0000.00718.89
8.1.140.0030.00618.89
8.1.130.0030.00320.20
8.1.120.0030.00517.46
8.1.110.0070.00317.42
8.1.100.0040.00417.43
8.1.90.0040.00417.50
8.1.80.0000.00717.52
8.1.70.0000.00717.35
8.1.60.0050.00217.48
8.1.50.0000.00817.54
8.1.40.0050.00217.52
8.1.30.0060.00317.63
8.1.20.0060.00317.63
8.1.10.0050.00217.61
8.1.00.0040.00417.47
8.0.300.0000.00719.75
8.0.290.0040.00416.75
8.0.280.0070.00018.38
8.0.270.0000.00718.07
8.0.260.0030.00318.58
8.0.250.0050.00316.91
8.0.240.0030.00316.85
8.0.230.0030.00316.98
8.0.220.0000.00616.94
8.0.210.0000.00716.91
8.0.200.0040.00416.80
8.0.190.0050.00316.96
8.0.180.0030.00416.92
8.0.170.0000.00916.74
8.0.160.0000.00716.95
8.0.150.0070.00016.91
8.0.140.0000.00716.84
8.0.130.0000.00513.33
8.0.120.0040.00416.88
8.0.110.0020.00516.88
8.0.100.0050.00216.92
8.0.90.0070.00016.76
8.0.80.0060.01216.84
8.0.70.0000.00716.92
8.0.60.0000.00716.70
8.0.50.0000.00716.80
8.0.30.0140.01016.90
8.0.20.0090.01817.05
8.0.10.0060.01317.19
8.0.00.0160.00516.91
7.4.330.0050.00015.55
7.4.320.0060.00016.47
7.4.300.0000.00716.35
7.4.290.0000.00816.51
7.4.280.0120.00016.44
7.4.270.0030.00316.44
7.4.260.0050.00013.21
7.4.250.0030.00316.39
7.4.240.0040.00416.44
7.4.230.0030.00316.42
7.4.220.0000.00716.46
7.4.210.0090.00716.44
7.4.200.0040.00416.61
7.4.140.0140.00316.57
7.4.130.0070.01916.50
7.4.120.0070.01516.25
7.4.110.0110.00516.51
7.4.100.0110.00616.54
7.4.90.0030.01516.65
7.4.80.0100.01016.63
7.4.70.0160.00616.46
7.4.60.0150.00616.27
7.4.50.0080.00815.95
7.4.40.0060.01216.41
7.4.30.0090.00916.47
7.4.20.0100.00716.16
7.4.10.0080.00816.33
7.4.00.0040.01216.57
7.3.330.0040.00416.24
7.3.320.0020.00213.26
7.3.310.0050.00316.30
7.3.300.0000.00716.34
7.3.290.0050.00916.34
7.3.260.0100.00616.36
7.3.250.0170.00916.36
7.3.240.0070.01116.05
7.3.230.0060.01016.39
7.3.220.0160.00616.51
7.3.210.0070.01016.36
7.3.200.0000.01616.35
7.3.190.0150.00616.20
7.3.180.0090.01616.47
7.3.170.0150.00316.50
7.3.160.0080.00816.21
7.3.150.0110.00616.19
7.3.140.0170.00316.04
7.3.130.0070.01016.47
7.3.120.0100.00716.25
7.3.110.0060.01116.20
7.3.100.0110.00616.45
7.3.90.0130.00416.43
7.3.80.0100.00716.43
7.3.70.0030.01716.41
7.3.60.0090.00916.57
7.3.50.0080.00816.39
7.3.40.0120.00616.35
7.3.30.0100.00716.51
7.3.20.0160.00916.36
7.3.10.0140.00316.31
7.3.00.0030.02316.41

preferences:
46.57 ms | 400 KiB | 5 Q