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PHP OOP 私有属性赋值困惑

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Release: 2016-06-23 13:54:11
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最近发现在class 中给私有变量赋值的时候调用了函数就会报错,不得其解释,OOP方面的菜鸟,请高手解释?

class Test extends Controller {    //测试   private $test = count('csdn');}
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Parse error: syntax error, unexpected '(', expecting ',' or ';'


回复讨论(解决方案)

测试写错了,是字符串长度

class Test extends Controller {    //测试   private $test = strlen('csdn');}
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最近发现在class 中给私有变量赋值的时候调用了函数就会报错,不得其解释,OOP方面的菜鸟,请高手解释?

class Test extends Controller {    //测试   private $test = count('csdn');}
Copy after login
Copy after login

Parse error: syntax error, unexpected '(', expecting ',' or ';'

这并非是私有属性的原因
而是类属性在声明时不能赋予不确定的值!

define('TEST', strlen('csdn'));class Test extends Controller {    //测试   private $test = TEST;}
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Copy after login
这样写是可以的

多谢,多谢

这并非是私有属性的原因
而是类属性在声明时不能赋予不确定的值!

受教了

define('TEST', strlen('csdn'));class Test extends Controller {    //测试   private $test = TEST;}
Copy after login
Copy after login
这样写是可以的

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