<?php
/**
 * mongo字段加索引
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2021/6/11
 * Time: 15:02
 */

$mongoDB = 'deyibao';//mongo数据库名
$mongoClient = new MongoClient();//mongo连接
$db = $mongoClient->selectDB($mongoDB);//选择数据库
$collectionNames = $db->getCollectionNames();//获取所有的集合名
$rule1 = '/task_record_.*/';//正则表达式
$rule2 = '/turn_.+_record_.*/';
foreach ($collectionNames as $k=>$v){
    $index = $db->$v->getIndexInfo();//获取索引
    if (preg_match_all($rule1,$v)){
        foreach ($index as $key=>$val){
            if (!strstr('date',$val['name'])) $collection = $db->$v->ensureIndex(['date' => 1],['background'=>true]);
            if (!strstr('userId',$val['name'])) $collection = $db->$v->ensureIndex(['userId' => 1],['background'=>true]);
        }
    }
    if (preg_match_all($rule2,$v) || strstr($v,'turn_luck_money')){
        foreach ($index as $key=>$val){
            if (!strstr('date',$val['name'])) $collection = $db->$v->ensureIndex(['date' => 1],['background'=>true]);
            if (!strstr('userId',$val['name'])) $collection = $db->$v->ensureIndex(['userId' => 1],['background'=>true]);
            if (!strstr('type',$val['name'])) $collection = $db->$v->ensureIndex(['type' => 1],['background'=>true]);
            if (!strstr('createTime',$val['name'])) $collection = $db->$v->ensureIndex(['createTime' => 1],['background'=>true]);
        }
    }
    if (strstr($v,'turn_user_sign') || strstr($v,'turn_message') || strstr($v,'turn_group_ranklist_log')) {
        foreach ($index as $key=>$val){
            if (!strstr('userId',$val['name'])) $collection = $db->$v->ensureIndex(['userId' => 1],['background'=>true]);
        }
    }
    if (strstr($v,'turn_group_ranklist')) {
        foreach ($index as $key=>$val){
            if (!strstr('date',$val['name'])) $collection = $db->$v->ensureIndex(['date' => 1],['background'=>true]);
            if (!strstr('groupId',$val['name'])) $collection = $db->$v->ensureIndex(['groupId' => 1],['background'=>true]);
        }
    }
    if (strstr($v,'turn_contribution')) {
        foreach ($index as $key=>$val){
            if (!strstr('userId',$val['name'])) $collection = $db->$v->ensureIndex(['userId' => 1],['background'=>true]);
            if (!strstr('ctbUserId',$val['name'])) $collection = $db->$v->ensureIndex(['ctbUserId' => 1],['background'=>true]);
            if (!strstr('date',$val['name'])) $collection = $db->$v->ensureIndex(['date' => 1],['background'=>true]);
            if (!strstr('tierNum',$val['name'])) $collection = $db->$v->ensureIndex(['tierNum' => 1],['background'=>true]);
        }
    }
    if (strstr($v,'turn_exchange')) {
        foreach ($index as $key=>$val){
            if (!strstr('date',$val['name'])) $collection = $db->$v->ensureIndex(['date' => 1],['background'=>true]);
            if (!strstr('configId',$val['name'])) $collection = $db->$v->ensureIndex(['configId' => 1],['background'=>true]);
            if (!strstr('userId',$val['name'])) $collection = $db->$v->ensureIndex(['userId' => 1],['background'=>true]);
            if (!strstr('type',$val['name'])) $collection = $db->$v->ensureIndex(['type' => 1],['background'=>true]);
        }
    }
}

根据自己需求更改，此文章只为记录