Table of Contents
回复讨论(解决方案)
Home Backend Development PHP Tutorial php 处理html时,字符串截断

php 处理html时,字符串截断

Jun 23, 2016 pm 01:51 PM
html php string Truncate

stream=fopen("xxx.html");var str = '';while(!feof(stream){      size+=1024;     str.=fread(stream,size);}....
Copy after login


str只能获取1024个字节,后面的都比截断了,但是fread确实读取到了,是不是用.=出了问题,还是html里面有特殊字符导致截断?
谢谢大神


回复讨论(解决方案)

$stream=fopen("test.txt","a+");$str = '';$size=1024;while(!feof($stream)){	$str.=fread($stream,$size);}fclose($stream);echo $str;
Copy after login
Copy after login

$stream=fopen("test.txt","a+");$str = '';$size=1024;while(!feof($stream)){	$str.=fread($stream,$size);}fclose($stream);echo $str;
Copy after login
Copy after login


我读取的是html,跟读取模式应该没关系,有的页面可以抓取,有的页面抓取被截断,怀疑某个html标签的问题?谢谢

就你上面的代码而言,都不能运行,可能是你写错吧
至于你说的html的某个特殊字符,应该是不存在的
而且你只是读取一个html,数据不大,建议用file_get_contents(),性能比fread好

你那又不是 php 代码

就你上面的代码而言,都不能运行,可能是你写错吧
至于你说的html的某个特殊字符,应该是不存在的
而且你只是读取一个html,数据不大,建议用file_get_contents(),性能比fread好


恩,我乱写的,大概意思,刚开始改cms,php入门级。
您写的很对,但是我确实遇到问题了,调试的时候,每次while里面的fread都能读到数据,但是,加到字符串str里面后,str的长度变了,但是内容每增加,难道是调试的问题,调试的时候只能只能显示变量一部分?我改过xdebug的显示最大长度,没有效果,我用的vs.php调试的,怎么搞能显示全部。怎么搞能看到到底str存了多少,只见其长度增加,没见到内容变化

你用

$stream=fopen("test.html","r");$str = '';$size=1024;while(!feof($stream)){	$tmp=fread($stream,$size);	file_put_contents('d:/log.log',$tmp.PHP_EOL,FILE_APPEND);	$str.=$tmp;	$tmp='';}fclose($stream);echo $str;
Copy after login
Copy after login

运行程序,再打开log.log查看,每一行是每次while循环读取的数据

您那是什么代码?C么?

你用

$stream=fopen("test.html","r");$str = '';$size=1024;while(!feof($stream)){	$tmp=fread($stream,$size);	file_put_contents('d:/log.log',$tmp.PHP_EOL,FILE_APPEND);	$str.=$tmp;	$tmp='';}fclose($stream);echo $str;
Copy after login
Copy after login

运行程序,再打开log.log查看,每一行是每次while循环读取的数据


好的,我试试,好人啊,
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

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

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial
1666
14
PHP Tutorial
1272
29
C# Tutorial
1252
24
PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

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 in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

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: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

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

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

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 vs. Other Languages: A Comparison PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

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 and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP and Python: Different Paradigms Explained PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

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.

PHP: Handling Databases and Server-Side Logic PHP: Handling Databases and Server-Side Logic Apr 15, 2025 am 12:15 AM

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

See all articles