ThinkPHP find method queries a data record
find()
ThinkPHP find() method is similar to select(). The difference is that find() always queries only one piece of data, that is, the system automatically adds a LIMIT 1 limit.
When it is confirmed that the queried data record can only be one record, it is recommended to use the find() method to query, such as user login account detection:
public function chekUser(){ header("Content-Type:text/html; charset=utf-8"); $Dao = M("User"); // 构造查询条件 $condition['username'] = 'Admin'; $condition['password'] = MD5('123456'); // 查询数据 $list = $Dao->where($condition)->find(); if($list){ echo '账号正确'; }else{ echo '账号/密码错误'; } }
Another difference from select() is that find() returns A one-dimensional array, you can directly output the value of the array unit in the template without using labels such as volist to loop the output:
{$list['username']}
find() primary key query
When the condition parameter of the find() query is the table primary key, you can directly Parameters are written into the method, such as:
$Dao = M("User"); $list = $Dao->find(1);
user The primary key of the table is uid. This example will query the data with uid=1. This is one of the ActiveRecords mode implementations, simple and intuitive.
The above introduces the ThinkPHP find method to query a data record, including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











In this fast-paced era, OPPO Find X7 can use its imaging power to let us savor every beautiful moment in life. Whether it's magnificent mountains, rivers, lakes, or seas, warm family gatherings, or encounters and surprises on the street, it can help you record them with "unparalleled" picture quality. From the outside, the camera Deco design of Find It looks very recognizable and has a high-end feel. The inside is also unique, starting with the basic hardware configuration. FindX7 maintains the previous

List operation //Insert a value from the head of the list. $ret=$redis->lPush('city','guangzhou');//Insert a value from the end of the list. $ret=$redis->rPush('city','guangzhou');//Get the elements in the specified range of the list. 0 represents the first element of the list, -1 represents the last element, and -2 represents the penultimate element. $ret=$redis->l

On August 22, a digital blogger revealed some core configuration information of OPPO Find X8 Ultra. According to the exposed content, this high-end model will be equipped with Qualcomm’s latest Snapdragon 8Gen4 mobile platform, equipped with a 6000mAh ultra-large capacity battery, and supports 100W wired fast charging and 50W wireless fast charging functions. Appearance design There is currently no specific design information about OPPO Find X8 Ultra. But the real picture of the standard version of OPPO Find X8 has been exposed on the Internet. Appearance of FindX8 Judging from the exposed photos, the rear camera module of OPPO FindX8 adopts a square design with a certain degree of curvature at the four corners, giving a more rounded feeling. In addition, the machine adopts a direct

What are the string search and replace techniques in Python? (Specific code example) In Python, strings are a common data type, and we often encounter string search and replace operations in daily programming. This article will introduce some common string search and replacement techniques, accompanied by specific code examples. To find a specific substring in a string, you can use the find() method or index() method of the string. The find() method returns the index of the first occurrence of the substring in the string.

1: JSONArray to ListJSONArray string to List//Initialize JSONArrayJSONArrayarray=newJSONArray();array.add(0,"a");array.add(1,"b");array.add(2,"c") ;Listlist=JSONObject.parseArray(array.toJSONString(),String.class);System.out.println(list.to

php提交表单通过后,弹出的对话框怎样在当前页弹出php提交表单通过后,弹出的对话框怎样在当前页弹出而不是在空白页弹出?想实现这样的效果:而不是空白页弹出:------解决方案--------------------如果你的验证用PHP在后端,那么就用Ajax;仅供参考:HTML code

Method to convert list to numpy: 1. Use the numpy.array() function. The first parameter of the function is a list object, which can be a one-dimensional or multi-dimensional list; 2. Use the numpy.asarray() function, which will try its best to Use the data type of the input list; 3. Use the numpy.reshape() function to convert the one-dimensional list into a multi-dimensional NumPy array; 4. Use the numpy.fromiter() function, the first parameter of the function is an iterable object.

Example In this example, we first look at the usage of list.sort() before continuing. Here, we have created a list and sorted it in ascending order using sort() method - #CreatingaListmyList=["Jacob","Harry","Mark","Anthony"]#DisplayingtheListprint("List=",myList)#SorttheListsinAscendingOrdermyList .sort(
