3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name="why";//声明变量$name,并初始化 function echoName1() { //在函数echoName1()里使用global来声明$name global $name; echo "the first name is ".$name."<br>"; } function echoName2() { //在函数echoName2()里没有使用global来声明$name echo "the second name is ".$name."<br>"; } echoName1(); echoName2(); $last_name = "O'Keefe"; echo $sql = "select * from users where last_name = '" . addslashes($last_name) . "'"; class Person { //下面是人的成员属性 var $name; //人的名子 var $sex; //人的性别 var $age; //人的年龄 //定义一个构造方法参数为属性姓名$name、性别$sex和年龄$age进行赋值 function __construct($name = "", $sex = "", $age = "") { $this->name = $name; $this->sex = $sex; $this->age = $age; } //这个人可以说话的方法, 说出自己的属性 function say() { echo "我的名子叫:" . $this->name . " 性别:" . $this->sex . " 我的年龄是:" . $this->age . "<br>"; } } $p1 = new Person("张三", "男", 20); $p1_string = serialize($p1); //把一个对象串行化,返一个字符串 echo $p1_string . "<br>"; //串行化的字符串我们通常不去解析 $p2 = unserialize($p1_string); //把一个串行化的字符串反串行化形成对象$p2 $p2->say();

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)
8.3.60.0100.01018.68
8.3.50.0060.01321.98
8.3.40.0040.01118.84
8.3.30.0120.00319.04
8.3.20.0040.00420.39
8.3.10.0080.00021.92
8.3.00.0030.00622.39
8.2.180.0150.00318.66
8.2.170.0100.01022.96
8.2.160.0120.00820.76
8.2.150.0030.00524.18
8.2.140.0200.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.48
8.2.110.0080.00022.29
8.2.100.0100.00017.91
8.2.90.0000.00819.17
8.2.80.0000.00817.97
8.2.70.0040.00417.75
8.2.60.0000.00817.93
8.2.50.0000.01218.07
8.2.40.0060.00318.34
8.2.30.0040.00418.07
8.2.20.0000.00717.78
8.2.10.0070.00017.88
8.2.00.0030.00517.87
8.1.280.0140.00025.92
8.1.270.0070.00023.84
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0100.00723.96
8.1.230.0040.00819.08
8.1.220.0080.00017.74
8.1.210.0090.00018.77
8.1.200.0030.00717.35
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0080.00018.65
8.1.160.0000.00722.07
8.1.150.0050.00218.56
8.1.140.0000.00717.48
8.1.130.0030.00317.75
8.1.120.0040.00417.39
8.1.110.0050.00317.46
8.1.100.0030.00517.38
8.1.90.0000.00717.54
8.1.80.0070.00017.49
8.1.70.0000.00717.40
8.1.60.0060.00317.48
8.1.50.0040.00417.48
8.1.40.0040.00417.56
8.1.30.0040.00417.55
8.1.20.0000.00817.70
8.1.10.0040.00417.46
8.1.00.0040.00417.59
8.0.300.0040.00418.77
8.0.290.0080.00017.18
8.0.280.0070.00018.37
8.0.270.0040.00717.30
8.0.260.0030.00318.45
8.0.250.0070.00016.91
8.0.240.0040.00416.95
8.0.230.0040.00417.02
8.0.220.0000.00716.88
8.0.210.0000.00816.93
8.0.200.0050.00316.92
8.0.190.0040.00717.09
8.0.180.0030.00516.93
8.0.170.0000.00816.98
8.0.160.0050.00217.01
8.0.150.0030.00316.90
8.0.140.0070.00016.88
8.0.130.0060.00013.38
8.0.120.0000.00716.93
8.0.110.0040.00416.98
8.0.100.0040.00417.01
8.0.90.0030.00516.79
8.0.80.0090.00916.89
8.0.70.0040.00416.86
8.0.60.0080.00016.85
8.0.50.0050.00216.93
8.0.30.0090.01116.99
8.0.20.0130.00917.40
8.0.10.0050.00317.02
8.0.00.0140.00316.81
7.4.330.0050.00015.00
7.4.320.0030.00316.64
7.4.300.0040.00416.62
7.4.290.0030.00316.52
7.4.280.0030.00416.51
7.4.270.0000.00716.62
7.4.260.0070.00016.36
7.4.250.0040.00416.47
7.4.240.0030.00516.53
7.4.230.0000.00716.41
7.4.220.0060.01216.64
7.4.210.0060.00816.54
7.4.200.0040.00416.62
7.4.190.0000.00716.48
7.4.160.0170.00316.65
7.4.150.0070.01617.40
7.4.140.0070.01217.86
7.4.130.0090.01116.50
7.4.120.0090.00716.58
7.4.110.0060.01216.55
7.4.100.0060.01716.44
7.4.90.0090.00916.62
7.4.80.0070.01019.39
7.4.70.0170.00616.68
7.4.60.0070.01016.50
7.4.50.0000.00416.51
7.4.40.0000.01622.77
7.4.30.0040.01216.63
7.4.00.0070.01015.27
7.3.330.0000.00613.47
7.3.320.0050.00013.22
7.3.310.0050.00216.39
7.3.300.0040.00416.29
7.3.290.0060.00916.36
7.3.280.0050.01016.39
7.3.270.0090.00917.40
7.3.260.0180.00016.40
7.3.250.0070.01316.49
7.3.240.0120.00616.68
7.3.230.0090.00616.48
7.3.210.0060.01016.64
7.3.200.0090.01419.39
7.3.190.0080.01116.58
7.3.180.0090.00916.44
7.3.170.0070.01016.57
7.3.160.0100.00716.44
7.3.120.0070.00314.90
7.3.110.0000.01614.81
7.3.100.0030.00614.69
7.3.90.0060.00614.59
7.3.80.0000.01514.93
7.3.70.0080.00614.68
7.3.60.0000.01314.78
7.3.50.0060.00614.87
7.3.40.0040.00714.86
7.3.30.0000.01314.79
7.3.20.0030.00716.49
7.3.10.0090.00316.68
7.3.00.0040.01116.34
7.2.330.0130.01016.88
7.2.320.0110.01116.52
7.2.310.0100.00716.69
7.2.300.0100.00716.73
7.2.290.0080.00816.50
7.2.240.0090.00615.23
7.2.230.0070.00314.98
7.2.220.0070.00715.25
7.2.210.0070.01014.87
7.2.200.0070.00715.07
7.2.190.0060.01215.07
7.2.180.0090.00315.00
7.2.170.0060.01015.16
7.2.160.0040.00414.87
7.2.150.0060.00916.85
7.2.140.0000.01516.70
7.2.130.0030.00917.02
7.2.120.0110.00616.94
7.2.110.0040.01216.93
7.2.100.0030.00816.96
7.2.90.0070.00716.75
7.2.80.0000.01516.98
7.2.70.0070.00717.01
7.2.60.0100.00717.14
7.2.50.0030.01016.75
7.2.40.0030.01016.94
7.2.30.0030.00716.75
7.2.20.0080.00317.05
7.2.10.0080.00416.86
7.2.00.0050.01217.86
7.1.330.0040.00715.68
7.1.320.0000.01215.88
7.1.310.0070.00715.76
7.1.300.0030.00616.00
7.1.290.0030.00815.82
7.1.280.0000.01015.59
7.1.270.0090.00315.73
7.1.260.0060.00616.00
7.1.250.0060.00615.98
7.1.100.0040.01118.18
7.1.70.0030.00316.82
7.1.60.0040.01819.82
7.1.50.0060.00616.85
7.1.00.0070.07022.54
7.0.200.0070.00716.73
7.0.140.0000.07721.97
7.0.60.0130.08319.80
7.0.50.0100.07017.82
7.0.40.0070.04720.13
7.0.30.0370.08020.07
7.0.20.0270.07720.09
7.0.10.0070.05020.16
7.0.00.0100.06320.20
5.6.280.0100.06720.91
5.6.210.0030.06720.45
5.6.200.0170.08018.16
5.6.190.0000.04720.56
5.6.180.0470.08020.57
5.6.170.0300.07720.71
5.6.160.0100.07320.59
5.6.150.0100.06718.15
5.6.140.0070.08318.18
5.6.130.0030.05318.18
5.6.120.0070.04320.91
5.6.110.0200.05320.96
5.6.100.0170.06721.10
5.6.90.0070.05721.11
5.6.80.0200.07020.43
5.6.70.0230.07720.38
5.5.350.0030.03720.40
5.5.340.0030.07017.96
5.5.330.0130.06320.47
5.5.320.0300.05320.20
5.5.310.0330.06020.36
5.5.300.0030.08317.98
5.5.290.0070.07018.01
5.5.280.0100.08320.78
5.5.270.0000.04320.66
5.5.260.0030.04020.74
5.5.250.0030.08720.56
5.5.240.0070.06720.27
5.4.450.0570.02719.41
5.4.440.0500.04319.41
5.4.430.0530.04019.16
5.4.420.0370.04719.54
5.4.410.0170.05019.05
5.4.400.0130.05018.79
5.4.390.0100.06718.48
5.4.380.0330.03718.71
5.4.370.0200.05018.55
5.4.360.0130.05318.51
5.4.350.0170.05318.52
5.4.340.0170.05318.51
5.4.320.0060.03612.52
5.4.310.0030.03912.51
5.4.300.0080.03912.52
5.4.290.0040.04012.52
5.4.280.0060.03612.38
5.4.270.0070.03412.38
5.4.260.0060.03712.38
5.4.250.0060.04612.39
5.4.240.0050.03912.38
5.4.230.0090.03612.37
5.4.220.0040.03812.38
5.4.210.0060.03612.37
5.4.200.0080.04712.38
5.4.190.0040.03912.38
5.4.180.0060.03612.37
5.4.170.0050.03712.38
5.4.160.0080.03512.38
5.4.150.0060.03812.37
5.4.140.0060.03912.05
5.4.130.0070.04212.04
5.4.120.0060.03812.00
5.4.110.0020.03912.00
5.4.100.0070.03412.00
5.4.90.0080.03611.99
5.4.80.0030.04412.00
5.4.70.0070.03511.99
5.4.60.0060.03811.99
5.4.50.0050.03611.99
5.4.40.0090.03111.98
5.4.30.0080.03311.97
5.4.20.0040.04211.98
5.4.10.0060.03411.98
5.4.00.0040.03711.47
5.3.290.0060.04112.80
5.3.280.0030.04012.71
5.3.270.0080.03612.72
5.3.260.0060.03812.72
5.3.250.0050.03812.71
5.3.240.0070.03712.72
5.3.230.0070.03612.71
5.3.220.0040.03912.68
5.3.210.0060.03912.68
5.3.200.0100.03312.68
5.3.190.0080.03912.68
5.3.180.0060.03612.67
5.3.170.0060.03612.67
5.3.160.0080.03412.67
5.3.150.0100.04812.68
5.3.140.0060.04512.66
5.3.130.0070.03812.66
5.3.120.0060.04112.66
5.3.110.0040.04212.65
5.3.100.0070.03612.12
5.3.90.0040.03912.09
5.3.80.0060.03612.08
5.3.70.0040.03912.07
5.3.60.0050.03812.07
5.3.50.0050.03612.01
5.3.40.0050.03812.01
5.3.30.0080.03711.97
5.3.20.0080.03611.76
5.3.10.0060.03711.71
5.3.00.0060.04511.70
5.2.170.0080.0379.20
5.2.160.0070.0409.20
5.2.150.0070.0309.20
5.2.140.0060.0329.20
5.2.130.0010.0329.16
5.2.120.0060.0279.16
5.2.110.0070.0279.16
5.2.100.0090.0289.17
5.2.90.0050.0359.16
5.2.80.0070.0369.16
5.2.70.0040.0359.15
5.2.60.0060.0289.12
5.2.50.0050.0299.08
5.2.40.0050.0299.06
5.2.30.0070.0329.04
5.2.20.0040.0289.02
5.2.10.0070.0248.93
5.2.00.0030.0308.80
5.1.60.0030.0248.09
5.1.50.0030.0268.09
5.1.40.0040.0248.07
5.1.30.0050.0258.42
5.1.20.0060.0248.44
5.1.10.0040.0268.16
5.1.00.0070.0228.17
5.0.50.0040.0206.63
5.0.40.0030.0206.50
5.0.30.0030.0326.31
5.0.20.0030.0206.27
5.0.10.0010.0226.26
5.0.00.0020.0316.24
4.4.90.0040.0144.78
4.4.80.0040.0144.76
4.4.70.0050.0134.76
4.4.60.0030.0144.75
4.4.50.0050.0134.77
4.4.40.0030.0244.71
4.4.30.0000.0184.76
4.4.20.0030.0164.85
4.4.10.0070.0114.85
4.4.00.0030.0254.76
4.3.110.0040.0174.67
4.3.100.0030.0164.66
4.3.90.0030.0214.63
4.3.80.0030.0304.58
4.3.70.0070.0154.63
4.3.60.0040.0134.63
4.3.50.0010.0184.63
4.3.40.0050.0224.53
4.3.30.0010.0173.30
4.3.20.0010.0203.29
4.3.10.0030.0183.25
4.3.00.0200.01015.11

preferences:
43.13 ms | 401 KiB | 5 Q