传递对象法array_map() [英] Passing object method to array_map()
问题描述
类theClass描述{
功能doSomeWork($ VAR){
回报($ VAR + 2);
} 公共$ FUNC =doSomeWork; 功能theFunc($ min时,最大$){
返回(array_map(WHAT_TO_WRITE_HERE,范围($分钟,$最大值)));
}
}$ theClass描述=新theClass描述;
的print_r(call_user_func_array(阵列($ theClass描述,theFunc),阵列(1,5)));
出口;
任何一个可以告诉我可以在WHAT_TO_WRITE_HERE写,让doSomeWork功能得到传递,以array_map第一个参数。和code正常工作。
并给出了把为
阵列
(
[0] => 3
[1] => 4
[2] =>五
[3] => 6
[4] => 7
)
要使用与对象的方法array_map()
,传递包含对象实例和方法名称的数组。对于相同的对象范围,使用 $这种
正常。由于您的方法名在定义公共$ FUNC
属性,可以通过 $这个 - > FUNC
。这适用于接受回调作为参数大部分功能
作为一个方面说明,外 array_map括号()
是没有必要的。
返回array_map(阵列($此,这 - $> FUNC),范围($ min时,最大$));
class theClass{
function doSomeWork($var){
return ($var + 2);
}
public $func = "doSomeWork";
function theFunc($min, $max){
return (array_map(WHAT_TO_WRITE_HERE, range($min, $max)));
}
}
$theClass = new theClass;
print_r(call_user_func_array(array($theClass, "theFunc"), array(1, 5)));
exit;
Can any one tell what i can write at WHAT_TO_WRITE_HERE, so that doSomeWork function get pass as first parameter to array_map. and code work properly.
And give out put as
Array
(
[0] => 3
[1] => 4
[2] => 5
[3] => 6
[4] => 7
)
To use object methods with array_map()
, pass an array containing the object instance and the method name. For same-object scope, use $this
as normal. Since your method name is defined in your public $func
property, you can pass $this->func
. This applies to most functions that accept a callback as an argument.
As a side note, the parentheses outside array_map()
aren't necessary.
return array_map(array($this, $this->func), range($min, $max));
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