10 recommended articles about E_ERROR
Preface Recently, due to project needs, I need to read a txt document containing Chinese, and then save the file. The document was previously encoded by base64, causing all Chinese characters to be read and displayed as garbled characters. After the project team abandoned base64, two errors occurred: ascii codec can't encode characters in position ordinal not in range 128 UnicodeDecodeError: 'utf8' codec can't decode byte 0x. If you don’t know about ascii, unicode and utf-8, you can read this previous article about strings and encoding. Then you must understand the following three concepts: ascii can only represent numbers, English letters and some
1. 10 recommended articles about PHP predefined constant E_ERROR
Introduction: Preface Recently, due to project needs, I need to read a txt document containing Chinese, and then save the file. The document was previously encoded by base64, causing all Chinese characters to be read and displayed as garbled characters. After the project team abandoned base64, two errors occurred successively: ascii codec can't encode characters in position ordinal not in...
2. Python solves the problem of Chinese character encoding: Unicode Decode Error_python
Introduction: Recently used When python read a document containing Chinese characters, garbled characters appeared and two errors were reported. I had no choice but to go online to find the answer. Finally, I solved the problem with the help of netizens. I want to summarize it, and the following article will mainly focus on it. This article introduces how python solves the problem of Chinese character encoding. Friends in need can refer to it.
3. Apache environment, localhost has been loading, but 127.0.0.1 can be accessed normally
Introduction: Apache environment localhost:82 Problem: When the browser enters localhost:82, there is no response (everything was normal yesterday), but 127.0.0.1:82 can be accessed. Situation: 1. The error log is as follows apache error.log httpd.conf The red pen is where I am The changed local hosts file is as follows:
4. php pthreads When using mutex, the CLI has stop
Introduction: When PTHREADS uses mutex to lock, the cli crashes (WIN7) Code: {code...} If you can tell me where the php system log is (similar to APACHE's error.log). To add: According to the official PTHREADS, it is thread-safe. In theory, thread-safety itself...
Introduction: An environment is arranged locally, and apache php runs without problems. echo phpinfo()pboard.png](/img/bVF2CF) But when opening the local website environment, it cannot be opened: as shown below. The ssl module has been opened in xampp. Why? apache errorlog AH00112: Warning: D...
6. php $_file error explanation
Introduction: When uploading files using PHP, we will use a program to monitor the file information sent by the browser. First, it will pass $_FILES[fieldName]['error'] Different values are used to determine whether the status of the file to be uploaded is normal. $_FILES[fieldName] ['error']==0 means everything is normal. For the specific meaning of other values, please refer to the comment section of the program below! switch($_FILES[$field]['error']) { case 1 ...
7. php--require/include/require_once/include_once
Introduction: require and include are almost identical, except for the way they handle failure. require generates an E_COMPILE_ERROR level error when an error occurs, in other words it will cause the script to abort while include only generates a warning (E_WARNING) and the script will continue to run.
Introduction: Error Parse error: syntax error, unexpected T_STRING in F: appwampserverAppServwwwnamespace.php on line 3 {code...}
9. smarty - What is the error in this php? I didn’t find the mistake
#Introduction: This is the smarty setting code that I found online. At first it prompted Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in F:phpstudyWWWsmartysconfig.php on line 2. I saw that the second line was fine, so I typed it again, and...
10. What is the error in this php? I didn’t find the mistake
#Introduction: This is the code for smarty settings found online. At first it prompted Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in F:phpstudyWWWsmartysconfig.php on line 2. I saw that the second line was fine, so I typed it again, and...
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In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
