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PHP encryption and decryption algorithm function, mcrypt_encrypt is no longer recommended

There is a warning on the official website: This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged. So what function is used for encryption and decryption?

黃舟 2017-05-16 13:16:22 0  4  855

After the underlying device C language RC4 is encrypted, why can't Java use rc4 to decrypt, but other people's PHP programs can decrypt successfully?

The underlying device is a wifi probe that regularly pushes data to a service. This service address receives the data and uses rc4 to decrypt it. The underlying device rc4 encryption is written in C language. java receiving program {code...} java rc4 decryption program: public class RC4 { {code...} ...

PHP中文網(wǎng) 2017-06-17 09:15:15 0  1  1392

How to implement java's PbeWithMd5AndDes encryption and decryption in PHP

public static String encrypt(String key, String plainText){   String encryptTxt = "";   try {      byte[] salt = new byte[8];      MessageDigest md =

七 2020-07-31 11:37:47 0  0  2624

Guys, how do you implement Java's PbeWithMd5AndDes encryption and decryption in PHP?

The java code is as follows/** * Encryption method * @param key key * @param plainText plain text * @return cipher text */ public static String encrypt(String&n

七 2020-07-31 11:43:04 0  0  1486

About PHP and JAVA 3DES encryption issues

I want to write an encryption class in Java using PHP, but I saw this writing method in Java and it gave me a headache. Totally illogical. I found a complete class and wanted to refer to it. After many experiments, I could not translate the encryption class I uploaded into PHP. Please help me. Thank...

給我你的懷抱 2017-06-15 09:21:44 0  1  1001

How to import the contents of RTF format files into the editor in PHP?

The new function needs to extract the content from the RTF format file and put it into the input box of the unavailable input tag, as shown in the following figure. How to implement this function? Is there a method class in PHP to obtain it? .

北城浮生ぅ 2017-12-09 10:49:49 0  0  1185

How to display single SQL query results in PHP

I have a query about this php code and can't display the results in echo, can I convert to string? //conexion is my function that connects to the database and is completed $costTotal=conexion();$costTotal=$costTotal->query("SELECTSUM(product_cost)FROMproduct");echo$costTotal;For example...

P粉852578075 2023-08-17 20:30:29 0  1  689

How does Thinkphp call PHP extensions?

I installed the grpc extension of php, and can call [root@localhost softEval]# php greeter_client.php Hello world directly using the php command line. However, in the Thinkphp framework, I call the extension function in the same way, prompting: Class 'Grpc \ChannelCredentials' not found. Does anyone...

輕輕的 2018-07-10 10:24:48 0  1  1257

I have a PHP question that I don't understand. It's about arrays. I'll explain it in detail below↓

May I ask what $values[$k] and $v[$key] in this string of code $values[$k]= isset($v[$key]) ? $v[$key] : ''; mean. Sorry for the trouble, gentlemen. Attached source code: <?php function test($array=array(),$key='',$paixu=

劉毅 2019-02-15 21:50:26 0  5  1347

Migrating to PHP 8.1 - How to fix deprecated passing null to parameter error - Rename build in function

PHP8.1 has deprecated passing null as a parameter to many core functions. My main problem is with functions like htmlspecialchars(php) and trim(php) where null is no longer silently converted to an empty string. To solve this problem without using a lot of code, I tried renaming the original built-i...

P粉420868294 2024-01-10 16:21:21 0  2  693

Title rewritten to: Error: Invalid element type: Expected string (for built-in components) or class/function (for composite components) but got undefined element type

How can I solve this problem in my ReactNative code? The error reads "Error: Invalid element type: expected string (for built-in components) or class/function (for composite components), but got undefined. You may have forgotten to export the component from the file in which it was defined, or ...

P粉701491897 2023-09-01 13:23:24 0  1  731

Rewrite the title as: Convert php laravel's sql code to postgres format

I'm rewriting a web application written in php and laravel into a JavaScript stack. Currently I'm redesigning my database schema, which seems to be mysql to postgres. I'm a little confused about some of the syntax of the following createtable command publicfunctionup(){Schema::create('sessions',func...

P粉252116587 2024-01-16 13:47:34 0  1  572

How to return information in the middle of PHP chain calls

How to get the error message when there is an error in the PHP chain call. The error message here is not a simple string. For example, during the chain call process, a certain function may need to return an array and report an error directly when it does not meet a certain condition. , saying that t...

學(xué)習(xí)ing 2017-07-05 10:46:11 0  3  1175

laravel5.8 front desk auth login cannot

I am a student in the eighth phase of the PHP online class. I followed the laravel auth video of Teacher Ximen to expand a front-end login function. However, after the login process was completed, the transfer to the next page was intercepted by the middleware, and there was no error in the code exe...

不是一般的人 2020-05-12 18:17:04 0  4  2281

Positional parameters cannot be used after named parameters |yiyi2

I'm taking the Yii2PHP framework course and I'm running into a problem. I'm not very familiar with PHP so I'm having a hard time figuring this out. So I tried to create a "Delete" button in my website but I got the error: "Cannot use positional parameters after named parameters"....

P粉158473780 2024-03-26 14:44:20 0  1  594

How to get openid after scanning the QR code image generated with PHP?

I used the PHP QR code generation class library to generate a QR code picture (not generated by the WeChat interface). I want to get the openid of a WeChat user after scanning the QR code. How can I implement this function? (I previously thought of using web page authorization to achieve this, but t...

LRTRL 2017-06-28 16:57:44 0  1  2147

Laravel Modal does not return data

I don't know why I'm not getting the value from the modal in my Laravel controller. Please check it for me. However, I use the same code for other modes and controllers. It's working and returning the value from the property without any issues. I'm using Laravel8 and php8.1; below is my code. app\Ht...

P粉174151913 2024-03-29 10:31:31 0  1  586

Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use

明民 2017-10-10 17:04:14 0  2  1379

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

After installing the PHP toolbox, all the mysql tables in phpstudy that I installed before are gone. What should I do?

劉袁銘 2017-10-10 19:25:59 0  4  2935

mcrypt_get_key_size()

To use mcrypt_get_key_size() in php study, how to enable mcrypt_

劉袁銘 2017-10-10 19:47:34 0  1  1167