我觉得这很奇怪，但我似乎无法让 php 报告错误。
我正在创建一个类来检查和格式化 CMS 之外的一些结果，以允许更大的过滤能力，而无需创建自定义插件（由于时间限制）。
我在页面顶部包括了这两行。
//error_reporting(E_ALL);
//ini_set('display_errors', '1');
我已经切换了每个并尝试使用两者，没有效果。我的 php.ini 显示 display_errors 与 html_errors 相同。error_reporting 设置为 1。
对于旧代码，我可以使用它，并且错误报告会显示通知和错误。虽然在某些情况下我确实遇到了同样的问题，但问题是由于在函数外部设置变量导致无法在函数内调用它而不使其成为函数参数。这就是为什么我决定切换到一个类来避免这个问题。
我正在尝试创建一个简单的类来执行此操作并将结果输出为 JSON。我的 php 并不完美，但如果我至少得到一个错误，我可以很容易地诊断出哪里出了问题。在这种情况下，我什至无法让 php 显示回显，更不用说任何数据/错误了。我得到的只是一个纯白的页面。这是我正在使用的完整代码，因为我正在更新它，所以它一团糟。
class k2JSON {
private $limit = '';
private $featured = '';
private $prefix = 'base_';
private $filter_query = '';
private $types = array();
private $dates = array();
private $build = array();
private $db_arr = array(
'name' => 'westerner_days',
'host' => 'localhost',
'user' => 'rem',
'pass' => '#w1n1nng'
);
function __construct(){
echo 'called constructor <br />';
if(isset($_GET['limit'])){
$this->limit = ' LIMIT '.$_GET['limit'];
}
if(isset($_GET['featured'])){
$this->featured = " AND `featured`='".$_GET['featured']."'";
}
$this->db = new mysqli(
$db_arr['host'],
$db_arr['user'],
$db_arr['pass'],
$db_arr['name']
);
if(mysqli_connect_errno()){
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$this->checkFilter();
$this->checkDates();
$this->checkExtra();
};
private function checkFilter(){
if(isset($_GET['filter'])){
switch($_GET['filter']){
case 'entertainment':
$this->filter_query = "SELECT * FROM `{$this->prefix}k2_items` WHERE `catid` IN (5,6,7,8,9,10,11){$this->featured} AND `trash`='0'".$this->limit;
break;
case 'midway':
$this->filter_query = "SELECT * FROM `{$this->prefix}k2_items` WHERE `catid` IN (12,13,14){$this->featured} AND `trash`='0'".$this->limit;
break;
case 'off-site':
$this->filter_query = "SELECT * FROM `{$this->prefix}k2_items` WHERE `catid` IN (15,16,17,18){$this->featured} AND `trash`='0'".$this->limit;
break;
default:
$this->filter_query = "SELECT * FROM `{$this->prefix}k2_items` WHERE `catid` IN (5,6,7,8,9,10,11,12,13,14,15,16,17,18){$this->featured} AND `trash`='0'".$this->limit;
break;
}
}else{
$this->filter_query = "SELECT * FROM `{$this->prefix}k2_items` WHERE `catid` IN (5,6,7,8,9,10,11,12,13,14,15,16,17,18){$this->featured} AND `trash`='0'".$this->limit;
}
$this->filter_result = $this->db->query($this->filter_query) or die($this->db->error.__LINE__);
};
private function checkDates(){
$this->date_query = "SELECT * FROM `{$this->prefix}k2_extra_fields` WHERE `id` IN (2,14,11) AND `published`='1'";
$this->date_result = $this->db->query($this->date_query) or die($this->db->error.__LINE__);
while($row = $this->date_result->fetch_assoc()){
$this->dates[$row['id']] = json_decode($row['value']);
}
};
private function checkExtra(){
$this->extra_query = "SELECT * FROM `{$this->prefix}k2_extra_fields` WHERE `published`='1'";
$this->extra_result = $this->db->query($this->extra_query) or die($this->db->error.__LINE__);
while($row = $this->extra_result->fetch_assoc()){
$this->types[$row['id']] = json_decode($row['value']);
}
};
private function buildOutput($data){
$compile = array();
$compile['extra']= array();
$compile['title'] = $data['title'];
$compile['featured'] = $data['featured'];
$compile['published'] = $data['published'];
$compile['desc'] = $data['introtext'];
$compile['link'] = 'http://'.
$_SERVER['HTTP_HOST'].
dirname($_SERVER['REQUEST_URI']).'/'.
(isset($_GET['filter'])?
$_GET['filter']:
in_array($data['catid'],[5,6,7,8,9,10,11])?
'entertainment':
in_array($data['catid'],[12,13,14])?
'midway':
in_array($data['catid'],[15,16,17,18])?
'off-site':
''
).'/view/item/'.$data['id'].'-'.$data['alias'];
$compile['type'] = $data['catid'];
$compile['image'] = array(
'xsmall' => '/media/k2/items/cache/'.md5('Image'.$data['id']).'_XS.jpg',
'small' => '/media/k2/items/cache/'.md5('Image'.$data['id']).'_S.jpg',
'medium' => '/media/k2/items/cache/'.md5('Image'.$data['id']).'_M.jpg',
'large' => '/media/k2/items/cache/'.md5('Image'.$data['id']).'_L.jpg',
'xlarge' => '/media/k2/items/cache/'.md5('Image'.$data['id']).'_XL.jpg',
);
$extra = json_decode($data['extra_fields']);
foreach($extra as $key=>$value){
switch($extra[$key]->id){
case 2:
if(is_array($extra[$key]->value)){
$return_array = array();
foreach($extra[$key]->value as $key2=>$value2){
if($this->dates['2'][$extra[$key]->value[$key2]-1]->name!=null){
$return_array[]=$this->dates['2'][$extra[$key]->value[$key2]-1]->name;
}
}
$compile['date'] = $return_array;
}else{
$compile['date'] = $this->dates['2'][$extra[$key]->value-1]->name;
}
break;
case 14:
if(is_array($extra[$key]->value)){
$return_array = array();
foreach($extra[$key]->value as $key2=>$value2){
if($dates['14'][$extra[$key]->value[$key2]-1]->name!=null){
$return_array[]=$this->dates['14'][$extra[$key]->value[$key2]-1]->name;
}
}
$compile['date'] = $return_array;
}else{
$compile['date'] = $this->dates['14'][$extra[$key]->value-1]->name;
}
break;
case 11:
if(is_array($extra[$key]->value)){
$return_array = array();
foreach($extra[$key]->value as $key2=>$value2){
if($dates['11'][$extra[$key]->value[$key2]-1]->name!=null){
$return_array[]=$this->dates['11'][$extra[$key]->value[$key2]-1]->name;
}
}
$compile['date'] = $return_array;
}else{
$compile['date'] = $this->dates['11'][$extra[$key]->value-1]->name;
}
break;
case 1:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
case 15:
if(is_array($extra[$key]->value)){
$return_array = array();
foreach($extra[$key]->value as $key2=>$value2){
$return_array[]=$this->types['15'][$extra[$key]->value[$key2]]->name;
}
$compile['extra'][$extra[$key]->id] = $return_array;
}else{
$compile['extra'][$extra[$key]->id] = $this->types['15'][$extra[$key]->value]->name;
}
break;
case 1:
if(is_array($extra[$key]->value)){
$return_array = array();
foreach($extra[$key]->value as $key2=>$value2){
$return_array[]=$this->types['1'][$extra[$key]->value[$key2]]->name;
}
$compile['extra'][$extra[$key]->id] = $return_array;
}else{
$compile['extra'][$extra[$key]->id] = $this->types['1'][$extra[$key]->value]->name;
}
break;
case 7:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
case 18:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
case 10:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
case 4:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
case 16:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
case 12:
$compile['extra'][$extra[$key]->id] = $extra[$key]->value;
break;
}
}
return $compile;
};
public function parse(){
if($this->filter_result->num_rows > 0) {
while($row = $this->filter_result->fetch_assoc()) {
if(isset($_GET['date'])){ //date but could have type
$extra = json_decode($row['extra_fields']);
foreach($extra as $key=>$value){
if($extra[$key]->id==2||$extra[$key]->id==14||$extra[$key]->id==11){ //find date extrafield
$check_array = array();
foreach($extra[$key]->value as $key2=>$value2){
$check_array[]=$dates['2'][$extra[$key]->value[$key2]-1]->name;
}
foreach($extra[$key]->value as $key2=>$value2){
$check_array[]=$dates['14'][$extra[$key]->value[$key2]-1]->name;
}
foreach($extra[$key]->value as $key2=>$value2){
$check_array[]=$dates['11'][$extra[$key]->value[$key2]-1]->name;
}
$compile['date'] = $check_array;
if(in_array($_GET['date'],$check_array)){
if(isset($_GET['type'])){ //type is set
if($row['catid']==$_GET['type']){
$this->build[]=$this->buildOutput($row);
}
}else{ //type is not set, output all values.
$bthis->build[]=$this->buildOutput($row);
}
}
}
}
}else if(isset($_GET['type'])){ //only type
if($row['catid']==$_GET['type']){
$this->build[]=$this->buildOutput($row);
}
}else{ //no filters
$this->build[]=$this->buildOutput($row);
}
}
}
};
public function outputResult(){
print_r($this->build);
echo json_encode($this->build);
};
};
echo 'init <br />';
$json = new k2JSON();
$json->parse();
$json->outputResult();
我知道可能有一些非常明显的错误。但如果没有 php 错误，我无法缩小范围。我希望对于有更多php经验的人来说，这个问题有一个明显的解决方法。