我有一个奇怪的问题,我写了一个递归功能,以从Facebook获得更多结果。在称为函数(递归)中,我将值返回到主函数。在我打印返回值时的调用函数中,它会显示确切的值(通常为90的数组大小)。但是在我打印返回值时的主函数中,它总是较小(每次数组大小正好为50)。这是我的代码..
public function mainFunction(){
$response = $fb->get('/me?fields=id,name,accounts', $useraccesstoken);
$userData = $response->getDecodedBody();
$pages = $userData['accounts'];
$pages = $this->getMorePages($pages);
}
public function getMorePages($pages){
if(count($pages)>1 && isset($pages['paging']['next'])){
$morePages = file_get_contents($pages['paging']['next']);
$morePages = json_decode($morePages,true);
foreach($morePages['data'] as $page){
array_push($pages['data'],$page);
}
if(count($morePages)>1 && isset($morePages['paging']['next'])) {
$pages['paging']['next']=$morePages['paging']['next'];
$this->getMorePages($pages);
}
return $pages;
}else{
return $pages;
}
}
我的代码问题是什么。?
您使用的是递归函数,但不使用内部呼叫的值返回...
固定的代码为:
public function getMorePages($pages){
if(count($pages)>1 && isset($pages['paging']['next'])){
$morePages = file_get_contents($pages['paging']['next']);
$morePages = json_decode($morePages,true);
foreach($morePages['data'] as $page){
array_push($pages['data'],$page);
}
if(count($morePages)>1 && isset($morePages['paging']['next'])) {
$pages['paging']['next']=$morePages['paging']['next'];
// Add return values to the main array
//$pages += $this->getMorePages($pages);
// For more support use array_merge function
$pages = array_merge( $this->getMorePages($pages), $pages )
}
return $pages;
}else{
return $pages;
}
}