ReflectionMethod::export()函數是PHP中的一個內置函數,如果將return參數設置為TRUE,則用於以字符串形式返回導出,否則返回NULL。
用法:
string ReflectionMethod::export ( $class, $name, $return )
參數:此函數接受上述和以下所述的三個參數:
- class:這是初始化類的名稱。
- name:這是方法的名稱。
- return:它的值為TRUE或FALSE。使用TRUE將返回導出,而使用FALSE將相反。
返回值:如果將return參數設置為TRUE,則此函數以字符串形式返回導出,否則返回NULL。
以下示例程序旨在說明PHP中的ReflectionMethod::export()函數:
程序_1:
<?php
// Initializing a user-defined class
class Company {
protected function GeeksforGeeks($name) {
return 'GFG' . $name;
}
}
// Using ReflectionMethod() over the class Company
$A = new ReflectionMethod(new Company(), 'GeeksforGeeks');
// Calling the export() function
$B = $A->export( 'Company', 'GeeksforGeeks', $return = TRUE );
// Getting the the export as a string if the
// return parameter has been set to TRUE,
// otherwise NULL is returned.
var_dump($B);
?>
輸出:
string(171) "Method [ <user> protected method GeeksforGeeks ] { @@ /home/cd1a603457d3beda20350155354b4363.php 6 - 8 - Parameters [1] { Parameter #0 [ <required> $name ] } } "
程序_2:
<?php
// Initializing some user-defined classes
class Department1 {
protected function HR($name) {
return 'hr' . $name;
}
}
class Department2 {
protected function Coding($name) {
return 'coding' . $name;
}
}
class Department3 {
protected function Marketing($name) {
return 'marketing' . $name;
}
}
// Using ReflectionMethod() over the above classes
$A = new ReflectionMethod(new Department1(), 'HR');
$B = new ReflectionMethod(new Department2(), 'Coding');
$C = new ReflectionMethod(new Department3(), 'Marketing');
// Calling the export() function and
// Getting the the export as a string if the
// return parameter has been set to TRUE,
// otherwise NULL is returned.
var_dump($A->export( 'Department1', 'HR', $return = TRUE ));
var_dump($B->export( 'Department2', 'Coding', $return = FALSE ));
var_dump($C->export( 'Department3', 'Marketing', $return = FALSE ));
?>
輸出:
string(160) "Method [ <user> protected method HR ] { @@ /home/b1fa43e2f382f32d60abd4370db4a4f6.php 6 - 8 - Parameters [1] { Parameter #0 [ <required> $name ] } } " Method [ <user> protected method Coding ] { @@ /home/b1fa43e2f382f32d60abd4370db4a4f6.php 12 - 14 - Parameters [1] { Parameter #0 [ <required> $name ] } } NULL Method [ <user> protected method Marketing ] { @@ /home/b1fa43e2f382f32d60abd4370db4a4f6.php 18 - 20 - Parameters [1] { Parameter #0 [ <required> $name ] } } NULL
參考: https://www.php.net/manual/en/reflectionmethod.export.php
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