我使用的是 Laravel 5.2，我有一段代码一直返回 NULL。
public function load_network_settings()
{
$db = &$this->db1;
$r = $db->query('SELECT * FROM settings', FALSE);
while($obj = $db->fetch_object($r)) {
$this->C->{$obj->word} = stripslashes($obj->value);
}
global $C;
foreach($this->C as $k=>$v) {
$C->$k = & $this->C->$k;
}
if( !isset($C->SITE_TITLE) || empty($C->SITE_TITLE) ) {
$C->SITE_TITLE = 'Friendly';
}
$C->OUTSIDE_SITE_TITLE = $C->SITE_TITLE;
}
准确的说就是这一行
$r = $db->query('SELECT * FROM settings', FALSE);
我认为它也没有正确连接到数据库，但我真的不明白发生了什么。
class_network.php
<?php
class network
{
public $id;
public $info;
public $is_private;
public $is_public;
public $mysql;
public function __construct()
{
$this->id = FALSE;
$this->C = new stdClass;
$this->info = new stdClass;
$this->db1 = & $GLOBALS['db1'];
$this->db2 = & $GLOBALS['db2'];
$this->mysql = new mysqli('localhost','root','','SCM') or die ("problem");
}
public function load()
{
if( $this->id ) {
return FALSE;
}
$this->load_network_settings();
$this->info = (object) array(
'id' => 1,
);
$this->is_private = FALSE;
$this->is_public = TRUE;
$this->id = $this->info->id;
return $this->id;
}
public function load_network_settings()
{
$db = &$this->db1;
$r = $db->query('SELECT * FROM settings', FALSE);
while($obj = $db->fetch_object($r)) {
$this->C->{$obj->word} = stripslashes($obj->value);
}
global $C;
foreach($this->C as $k=>$v) {
$C->$k = & $this->C->$k;
}
if( !isset($C->SITE_TITLE) || empty($C->SITE_TITLE) ) {
$C->SITE_TITLE = 'Friendly';
}
$C->OUTSIDE_SITE_TITLE = $C->SITE_TITLE;
}
public function get_user_by_username($uname, $force_refresh=FALSE, $return_id=FALSE)
{
if( ! $this->id ) {
return FALSE;
}
if( empty($uname) ) {
return FALSE;
}
$uid = FALSE;
$r = $this->db2->query('SELECT iduser FROM users WHERE username="'.$this->db2->e($uname).'" LIMIT 1', FALSE);
if( $o = $this->db2->fetch_object($r) ) {
$uid = intval($o->iduser);
return $return_id ? $uid : $this->get_user_by_id($uid);
}
return FALSE;
}
public function get_user_by_email($email, $force_refresh=FALSE, $return_id=FALSE)
{
if( ! $this->id ) {
return FALSE;
}
if( ! is_valid_email($email) ) {
return FALSE;
}
$uid = FALSE;
$r = $this->db2->query('SELECT iduser FROM users WHERE email="'.$this->db2->escape($email).'" LIMIT 1', FALSE);
if( $o = $this->db2->fetch_object($r) ) {
$uid = intval($o->iduser);
return $return_id ? $uid : $this->get_user_by_id($uid);
}
return FALSE;
}
public function get_user_by_id($uid, $force_refresh=FALSE)
{
if( ! $this->id ) {
return FALSE;
}
$uid = intval($uid);
if( 0 == $uid ) {
return FALSE;
}
$r = $this->db2->query('SELECT * FROM users WHERE iduser="'.$uid.'" LIMIT 1', FALSE);
if ($o = $this->db2->fetch_object($r)) {
$o->active = intval($o->active);
$o->firstname = stripslashes($o->firstname);
$o->lastname = stripslashes($o->lastname);
$o->aboutme = stripslashes($o->aboutme);
$o->codecountry = stripslashes($o->codecountry);
$o->city = stripslashes($o->city);
$o->idregion = intval($o->idregion);
$o->network_id = $this->id;
$o->user_details = FALSE;
return $o;
}
return FALSE;
}
public function get_page_by_url($url, $return_id=FALSE)
{
if( ! $this->id ) return FALSE;
if( empty($url) ) return FALSE;
$uid = FALSE;
$r = $this->db2->query('SELECT idpage FROM pages WHERE url="'.$this->db2->e($url).'" LIMIT 1', FALSE);
if( $o = $this->db2->fetch_object($r) ) {
$uid = intval($o->idpage);
return $return_id ? $uid : $this->get_page_by_id($uid);
}
return FALSE;
}
public function get_page_by_id($idpage)
{
if( ! $this->id ) {
return FALSE;
}
$idpage = intval($idpage);
if (0 == $idpage) return FALSE;
$r = $this->db2->query('SELECT * FROM pages WHERE idpage='.$idpage.' LIMIT 1', FALSE);
if ($o = $this->db2->fetch_object($r)) {
$o->status = intval($o->status);
$o->title = stripslashes($o->title);
$o->url = $o->url;
$o->idpage = intval($o->idpage);
$o->code = $o->code;
return $o;
}
return FALSE;
}
public function get_group_by_url($url, $return_id=FALSE)
{
if( ! $this->id ) return FALSE;
if( empty($url) ) return FALSE;
$uid = FALSE;
$r = $this->db2->query('SELECT idgroup FROM groups WHERE url="'.$this->db2->e($url).'" LIMIT 1', FALSE);
if( $o = $this->db2->fetch_object($r) ) {
$uid = intval($o->idgroup);
return $return_id ? $uid : $this->get_group_by_id($uid);
}
return FALSE;
}
public function get_group_by_id($idgroup)
{
if( ! $this->id ) return FALSE;
$idgroup = intval($idgroup);
if (0 == $idgroup) return FALSE;
$r = $this->db2->query('SELECT * FROM groups WHERE idgroup='.$idgroup.' LIMIT 1', FALSE);
if ($o = $this->db2->fetch_object($r)) {
$o->status = intval($o->status);
$o->name_group = stripslashes($o->name_group);
$o->url = $o->url;
$o->idgroup = intval($o->idgroup);
$o->code = $o->code;
return $o;
}
return FALSE;
}
public function get_ads_basic($code)
{
if( ! $this->id ) {
return FALSE;
}
return $this->db2->fetch_field('SELECT adsource FROM ads_basic WHERE code="'.$code.'" LIMIT 1');
}
// Check if $uid1 is a follower of $uid2
public function verifies_follower($uid1, $uid2)
{
if( ! $this->id ) {
return FALSE;
}
$uid1 = intval($uid1);
if( 0 == $uid1 ) {
return FALSE;
}
$uid2 = intval($uid2);
if( 0 == $uid2 ) {
return FALSE;
}
return $this->db2->fetch_field('SELECT idrelation FROM relations WHERE leader='.$uid2.' AND type_leader=0 AND subscriber='.$uid1);
}
public function get_user_follows($uid, $type = FALSE)
{
if( ! $this->id ) {
return FALSE;
}
$uid = intval($uid);
if( 0 == $uid ) {
return FALSE;
}
$data = new stdClass;
$data->followers = array();
$data->follow_users = array();
if( ($type && $type == 'hisfollowers') || ($type === FALSE) ){
$r = $this->db2->query('SELECT suscriber FROM relations WHERE leader="'.$uid.'" AND type_leader=0 ORDER BY idrelation DESC', FALSE);
while($o = $this->db2->fetch_object($r)) {
$data->followers[intval($o->suscriber)] = 1;
}
}
if( ($type && $type == 'hefollows') || ($type === FALSE) ){
$r = $this->db2->query('SELECT leader FROM relations WHERE suscriber="'.$uid.'" AND type_leader=0 ORDER BY idrelation DESC', FALSE);
while($o = $this->db2->fetch_object($r)) {
$data->follow_users[intval($o->leader)] = 2;
}
}
return $data;
}
public function get_country($codecountry)
{
return $this->db2->fetch_field('SELECT country FROM country WHERE code="'.$codecountry.'" LIMIT 1');
}
public function get_region($idregion)
{
return $this->db2->fetch_field('SELECT region FROM country_region WHERE idregion='.$idregion.' LIMIT 1');
}
public function isUserVerified($uid)
{
if( ! $this->id ) {
return FALSE;
}
$uid = intval($uid);
if( 0 == $uid ) {
return FALSE;
}
$r = $this->db2->query('SELECT verified FROM users WHERE iduser="'.$uid.'" LIMIT 1', FALSE);
if ($o = $this->db2->fetch_object($r)) {
if ($o->verified==1) return TRUE;
}
return FALSE;
}
public function getUserAleat($total, $exclude=0, $privacy=-1)
{
global $user;
$condition = '';
if ($user->is_logged) {
$friends = $this->db2->fetch_all('SELECT iduser FROM friends, users WHERE accepted<>0 AND ((user1=iduser AND user2='.$user->id.') OR (user1='.$user->id.' AND user2=iduser))');
if (count($friends)>0) {
$arrayFriends = array();
foreach($friends as $onefriend) {
$arrayFriends[] = $onefriend->iduser;
}
$condition = ' iduser NOT IN ('.implode(',',$arrayFriends).') AND ';
}
}
if ($privacy==-1) $r = $this->db2->fetch_all('SELECT * FROM users WHERE '.$condition.' active=1 AND iduser<>'.$exclude.' ORDER BY RAND() LIMIT '.$total);
else $r = $this->db2->fetch_all('SELECT * FROM users WHERE '.$condition.' active=1 AND privacy='.$privacy.' AND iduser<>'.$exclude.' ORDER BY RAND() LIMIT '.$total);
return $r;
}
public function getPostsUser($iduser)
{
$r = $this->db2->fetch_all('SELECT idpost, code FROM posts WHERE iduser='.$iduser);
return $r;
}
public function getCodePost($idp)
{
$idp = intval($idp);
if( 0 == $idp ) return FALSE;
return $this->db2->fetch_field('SELECT code FROM posts WHERE idpost='.$idp.' LIMIT 1');
}
public function getURLPage($idpage)
{
$idpage = intval($idpage);
if( 0 == $idpage ) return FALSE;
return $this->db2->fetch_field('SELECT url FROM pages WHERE idpage='.$idpage.' LIMIT 1');
}
public function getURLGroup($idgroup)
{
$idgroup = intval($idgroup);
if( 0 == $idgroup ) return FALSE;
return $this->db2->fetch_field('SELECT url FROM groups WHERE idgroup='.$idgroup.' LIMIT 1');
}
public function getCodeGroup($idgroup)
{
$idgroup = intval($idgroup);
if( 0 == $idgroup ) return FALSE;
return $this->db2->fetch_field('SELECT code FROM groups WHERE idgroup='.$idgroup.' LIMIT 1');
}
public function getInfoGroup($idgroup)
{
$idgroup = intval($idgroup);
if( 0 == $idgroup ) return FALSE;
$r = $this->db2->fetch('SELECT url, name_group FROM groups WHERE idgroup='.$idgroup.' LIMIT 1');
return $r;
}
public function verifiedPost($code, $idu)
{
$code = $this->db2->e($code);
if (strlen($code) != 11) return FALSE;
$idu = intval($idu);
if( 0 == $idu ) return FALSE;
return $this->db2->fetch_field('SELECT idpost FROM posts WHERE code="'.$code.'" AND iduser='.$idu.' LIMIT 1');
}
public function verifiedPostinPage($code, $idpage)
{
$code = $this->db2->e($code);
if (strlen($code) != 11) return FALSE;
$idpage = intval($idpage);
if( 0 == $idpage ) return FALSE;
return $this->db2->fetch_field('SELECT idpost FROM posts WHERE code="'.$code.'" AND posted_in=1 AND id_wall='.$idpage.' LIMIT 1');
}
public function verifiedPostinGroup($code, $idgroup)
{
$code = $this->db2->e($code);
if (strlen($code) != 11) return FALSE;
$idgroup = intval($idgroup);
if( 0 == $idgroup ) return FALSE;
return $this->db2->fetch_field('SELECT idpost FROM posts WHERE code="'.$code.'" AND posted_in=2 AND id_wall='.$idgroup.' LIMIT 1');
}
public function idwall($code, $type)
{
$code = $this->db2->e($code);
if (strlen($code) != 11) return FALSE;
switch ($type) {
case 0:
return $this->db2->fetch_field('SELECT iduser FROM users WHERE code="'.$code.'" LIMIT 1');
break;
case 1:
return $this->db2->fetch_field('SELECT idpage FROM pages WHERE code="'.$code.'" LIMIT 1');
break;
case 2:
return $this->db2->fetch_field('SELECT idgroup FROM groups WHERE code="'.$code.'" LIMIT 1');
break;
}
}
public function infoBasicWall($posted_in, $id_wall)
{
switch ($posted_in) {
case 0:
$r = $this->db2->fetch('SELECT code, username, firstname, lastname FROM users WHERE iduser='.$id_wall.' LIMIT 1');
break;
case 1:
$r = $this->db2->fetch('SELECT code, url, title, idpage FROM pages WHERE idpage='.$id_wall.' LIMIT 1');
break;
case 2:
$r = $this->db2->fetch('SELECT idgroup, code, url, name_group FROM groups WHERE idgroup='.$id_wall.' LIMIT 1');
break;
}
return $r;
}
public function getComment($idc)
{
$idc = intval($idc);
if( 0 == $idc ) return FALSE;
return $this->db2->fetch_field('SELECT comment FROM comments WHERE idcomment='.$idc.' LIMIT 1');
}
public function getInfoCommentById($idc)
{
$idc = intval($idc);
if( 0 == $idc ) return FALSE;
return $this->db2->fetch('SELECT posts.code, posts.iduser, comment, username FROM comments, posts, users WHERE users.iduser=posts.iduser AND comments.idpost=posts.idpost AND idcomment='.$idc.' LIMIT 1');
}
public function getUsername($idu)
{
$idu = intval($idu);
if( 0 == $idu ) return FALSE;
return $this->db2->fetch_field('SELECT username FROM users WHERE iduser='.$idu.' LIMIT 1');
}
public function getNumNotifications($idu)
{
$idu = intval($idu);
if( 0 == $idu ) return FALSE;
return $this->db2->fetch_field('SELECT num_notifications FROM users WHERE iduser='.$idu.' LIMIT 1');
}
public function getNameCatPage($idcat)
{
$idcat = intval($idcat);
if( 0 == $idcat ) return FALSE;
return $this->db2->fetch_field('SELECT name FROM pages_cat WHERE idcategory='.$idcat.' LIMIT 1');
}
public function getUsersAleatHome($quantity=8)
{
//$r = $this->db2->fetch_all("SELECT * FROM users WHERE active=1 AND avatar<>'' ORDER BY RAND() LIMIT ".$quantity);
$r = $this->db2->fetch_all("SELECT * FROM users WHERE active=1 ORDER BY RAND() LIMIT ".$quantity);
return $r;
}
public function getTrendsTopic($quantity=10)
{
global $C;
$timenow = time();
$timeoneday = time() - 86400000 * $C->NUM_DAYS_TRENDS;
$r = $this->db2->fetch_all("SELECT COUNT( DISTINCT iduser ) total, trend FROM trends WHERE whendate < '".$timenow."' AND whendate > '".$timeoneday."' && trend <> '' GROUP BY trend ORDER BY total DESC LIMIT ".$quantity);
return $r;
}
// Check if $uid1 is a friend of $uid2
public function verifyFriendship($uid1, $uid2, $action)
{
if( ! $this->id ) {
return FALSE;
}
$uid1 = intval($uid1);
$uid2 = intval($uid2);
if( 0 == $uid1 || 0 == $uid2 ) {
return FALSE;
}
switch ($action) {
case 1:
return $this->db2->fetch_field('SELECT id FROM friends WHERE (user1='.$uid2.' AND user2='.$uid1.') OR (user1='.$uid1.' AND user2='.$uid2.')');
break;
case 2:
case 3:
case 4:
return $this->db2->fetch_field('SELECT id FROM friends WHERE accepted=0 AND ((user1='.$uid2.' AND user2='.$uid1.') OR (user1='.$uid1.' AND user2='.$uid2.'))');
break;
case 5:
return $this->db2->fetch_field('SELECT id FROM friends WHERE accepted<>0 AND ((user1='.$uid2.' AND user2='.$uid1.') OR (user1='.$uid1.' AND user2='.$uid2.'))');
break;
}
}
public function idOwnerPost($idpost)
{
$idp = intval($idpost);
if( 0 == $idp ) return FALSE;
return $this->db2->fetch_field('SELECT iduser FROM posts WHERE idpost='.$idp.' LIMIT 1');
}
public function PostLiketoUser($iduser, $idpost)
{
$r = $this->db2->fetch_field('SELECT idlike FROM likes WHERE iduser='.$iduser.' AND idpost='.$idpost.' LIMIT 1');
return $r;
}
public function getCommentsPost($start, $quantity, $idpost, $iduhidden=0)
{
$sqlCommentsHiddens = '';
if ($iduhidden != 0) {
$sqlCommentsHiddens = ' SELECT iditem FROM hiddens WHERE typeitem=2 AND iduser='.$iduhidden;
$sqlCommentsHiddens = ' idcomment NOT IN ('.$sqlCommentsHiddens.') AND ';
}
$r = $this->db2->fetch_all('
SELECT idcomment, comments.whendate, comment, comments.iduser, username, firstname, lastname, avatar, idpost, users.code as ucode
FROM comments, users
WHERE '.$sqlCommentsHiddens.'
users.iduser=comments.iduser
AND idpost='.$idpost.'
ORDER BY comments.whendate DESC
LIMIT '.$start.','.$quantity);
return $r;
}
public function getNumCommentsPost($idpost, $iduhidden=0)
{
$sqlCommentsHiddens = '';
if ($iduhidden != 0) {
$sqlCommentsHiddens = ' SELECT iditem FROM hiddens WHERE typeitem=2 AND iduser='.$iduhidden;
$sqlCommentsHiddens = ' idcomment NOT IN ('.$sqlCommentsHiddens.') AND ';
}
$r = $this->db2->fetch_field('
SELECT count(idcomment)
FROM comments
WHERE '.$sqlCommentsHiddens.'
idpost='.$idpost);
return $r;
}
public function idOwnerPage($idpage)
{
$idp = intval($idpage);
if( 0 == $idp ) return FALSE;
return $this->db2->fetch_field('SELECT idowner FROM pages WHERE idpage='.$idp.' LIMIT 1');
}
public function idOwnerGroup($idgroup)
{
$idg = intval($idgroup);
if( 0 == $idg ) return FALSE;
return $this->db2->fetch_field('SELECT idcreator FROM groups WHERE idgroup='.$idg.' LIMIT 1');
}
}
?>
config.php
<?php
/**
*
* NOTE: Designed for use with PHP version 4, 5 and up
* @author Santos Montano B. <ssmontano@hotmail.com, litosantosm@gmail.com>
* @country Perú
* @copyright 2016
* @version: 1.5.3
*
*/
/**
* Configuration file.
*/
$C = new stdClass;
$C->INCPATH = dirname(__FILE__).'/';
chdir( $C->INCPATH );
$C->SITE_URL = 'http://localhost/';
$C->DOMAIN = 'http://localhost';
// MySQL SETTINGS
$C->DB_HOST = 'localhost';
$C->DB_USER = 'root';
$C->DB_PASS = '';
$C->DB_NAME = 'SCM';
$C->DB_MYEXT = 'mysql'; // 'mysqli' or 'mysql'
// Folder of user data
$C->FOLDER_DATA = "data/";
// Temporary folder
$C->FOLDER_TMP = "data/tmp/";
// Avatars folder users
$C->FOLDER_AVATAR = "data/avatars/";
$C->AVATAR_DEFAULT = 'default.jpg';
// Avatars folder pages
$C->FOLDER_AVATAR_PAGES = "data/avatars_pages/";
$C->AVATAR_DEFAULT_PAGE = 'default.jpg';
// Avatars folder groups
$C->FOLDER_AVATAR_GROUPS = "data/avatars_groups/";
$C->AVATAR_DEFAUL_GROUP = 'default.jpg';
// Sizes for the avatar
$C->widthAvatar0 = 180;
$C->widthAvatar1 = 100;
$C->heightAvatar1 = 100;
$C->widthAvatar2 = 50;
$C->heightAvatar2 = 50;
$C->widthAvatar3 = 26;
$C->heightAvatar3 = 26;
$C->widthAvatar4 = 180;
$C->heightAvatar4 = 180;
$C->SIZE_IMAGEN_AVATAR = 2 * 1024 * 1024; // 2 MB;
// photos folder users
$C->FOLDER_PHOTOS = "data/photos/";
// photos folder pages
$C->FOLDER_PHOTOS_PAGES = "data/photos_pages/";
// photos folder groups
$C->FOLDER_PHOTOS_GROUPS = "data/photos_groups/";
$C->SIZE_PHOTO = 5 * 1024 * 1024; // 5 MB;
// Sizes for the photos
$C->widthPhotoThumbail = 230;
/**************************/
/**************************/
// Covers folder users
$C->FOLDER_COVERS = "data/covers/";
// Covers folder pages
$C->FOLDER_COVERS_PAGES = "data/covers_pages/";
// Covers folder groups
$C->FOLDER_COVERS_GROUPS = "data/covers_groups/";
// Sizes for the covers
$C->widthCover1 = 946;
$C->heightCover1 = 300;
$C->widthCover2 = 712;
$C->heightCover2 = 226;
$C->widthCover3 = 350;
$C->heightCover3 = 111;
$C->SIZE_IMAGEN_COVER = 5 * 1024 * 1024; // 5 MB;
/**************************/
// Background folder of images in home
$C->FOLDER_BGHOME = "data/bghome/";
/**************************/
// Images of Ads of users
$C->FOLDER_ADS = "data/ads/";
/**************************/
// Albums of users
$C->FOLDER_ALBUMS = "data/albums/";
/**************************/
//if you want to view page view statistics in administration section set the value to TRUE,
$C->write_page_view_is_active = FALSE;
$C->LOGIN_WITH_FACEBOOK = TRUE;
$C->FB_APPID = '111100001111000';
$C->FB_SECRET = '44445555666677778888999900000000';
$C->LOGIN_WITH_TWITTER = TRUE;
$C->TW_APPID = 'xxxxyyyyxxxxyyyyxxxxyyyyx';
$C->TW_SECRET = 'aaaabbbbaaaabbbbaaaabbbbaaaabbbbaaaabbbbaaabbbbaa';
$C->DOMAIN_EMAIL_TW = 'kanorika.com'; //usually your domain
// Settings for Mail
$C->FromName = 'Friendly';
$C->From = 'no-reply@kanorika.com';
$C->Host = 'mail.kanorika.com';
$C->Port = '587';
$C->UsernameMail = 'no-reply@kanorika.com';
$C->PasswordMail = 'yourpass';
$C->INFINITE_SCROLL = TRUE;
/*** VERSION 1.2 ***/
$C->widthAd1 = 180;
$C->heightAd1 = 90;
$C->widthAd2 = 100;
$C->heightAd2 = 50;
/*** END VERSION 1.2 ***/
/*** VERSION 1.3 ***/
$C->LOGIN_WITH_VK = TRUE;
$C->VK_APPID = '1111111';
$C->VK_SECRET = 'xxxxdddxxxdddaaawwwsss';
$C->DOMAIN_EMAIL_VK = 'kanorika.com'; //usually your domain
$C->SHOW_APP = TRUE; // Show "images link" for download your app android
/*** END VERSION 1.3 ***/
/*** VERSION 1.4 ***/
$C->LOGIN_WITH_GPLUS = TRUE;
$C->GP_CLIENTID = '1122112211221-qvd3f4d3f4s2d3f4g5h6j7t5r4w2e3r4.apps.googleusercontent.com';
$C->GP_CLIENTSECRET = 'r4t5y6u7i8o9e3r4t5y6e3r4';
$C->LOGIN_WITH_LINKEDIN = TRUE;
$C->IN_APIKEY = '77defrg5h6e3r4';
$C->IN_SECRETKEY = 'E343ere3r4r4r4r4';
$C->DOMAIN_EMAIL_IN = 'kanorika.com'; //usually your domain
$C->LOGIN_WITH_YAHOO = TRUE;
$C->YH_CONSUMERKEY = 'dj0defrgthyswdefrgthyjukiloswdefrgtdefrgthyewdsewrefdregftrewdsewrefdretrgfwdsewdsrefdrer--';
$C->YH_CONSUMERSECRET = '3329fwget4y5dsewfdredsew3243re4354tr32ew';
$C->YH_DOMAIN_MAIN = 'www.kanorika.com'; //usually your domain
/*** END VERSION 1.4 ***/
?>
最佳答案
如果您尝试使用 Eloquent 的 query()方法，你不能那样做，因为 $db必须是 Model 的实例类(class)。您应该从一开始就使用 Eloquent 或自己编写 query()方法。
关于php - fatal error : Call to a member function query() on null (Laravel 5. 2)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/36103915/