PHP开发笔记系列(五)- INI文件解释
??? 在JAVA开发中,我们经常会用到properties文件来保存整个工程需要用到的配置信息,例如数据库的连接串、用户名、密码、文件上传目录等等,那么PHP中这样的配置信息是怎样保存的呢?本文《PHP开发笔记系列(五)- INI文件解释》
将是《PHP开发笔记系列(XAMPP+PhpEclipse+XDebug)》
的第五篇,讲述如何解释INI配置文件。
??? 在PHP中,通常使用ini文件来保存配置信息,在一个.ini文件中建立变量,然后用parse_ini_file函数在代码中包含这个文件,该函数讷讷够解释与php.ini相同格式的文件。
??? 为了方便起见,直接从%XAMPP_HOME%/php目录下,copy一份php.ini文件到php工程下, 实验php脚本的解释.
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????? INI文件是Initialization File的缩写,即初始化文件。是windows的系统配置文件所采用的存储格式。INI文件由节、键、值组成。节 是[section],参数(键=值): name=value,注解使用分号表示(;)。在分号后面的文字,直到该行结尾都全部为注解。以下是Xdebug.ini文件样例:
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[Xdebug] xdebug.profiler_enable=on xdebug.trace_output_dir=D:\xampp\php\tmp\xdebug xdebug.profiler_output_dir=D:\xampp\php\tmp\xdebug xdebug.remote_handler=dbgp xdebug.remote_host=localhost xdebug.remote_port=9000 xdebug.auto_trace = On xdebug.show_exception_trace = On xdebug.remote_autostart = On xdebug.remote_enable = On xdebug.collect_vars = On xdebug.collect_return = On xdebug.collect_params = On
?
? ??? parse_ini_file()函数可以设定是否解释section片段,下面将对上面的xdebug.ini文件进行解释,分别返回一维和二维数组:
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file:ini1.php url:http://localhost:88/ini/ini1.php <?php $filename= 'xdebug.ini'; // 指定ini文件路径,设定不解释section,结果为一维数组 $vars = parse_ini_file($filename); echo '<h1>Ini File Content:<br>'; echo '<pre class="brush:php;toolbar:false">'; print_r($vars); echo ''; echo '
'; echo '
'; // 通过数组索引(一维)访问配置信息 echo 'xdebug.remote_host='.$vars['xdebug.remote_host'].'<br>'; echo 'xdebug.remote_port='.$vars['xdebug.remote_port'].'<br>'; echo ''; ?>
?
?
file:ini2.php url:http://localhost:88/ini/ini2.php <?php $filename= 'xdebug.ini'; // 指定ini文件路径,设定解释section,结果为二维数组 $vars = parse_ini_file($filename, TRUE); echo '<h1>Ini File Content:<br>'; echo '<pre class="brush:php;toolbar:false">'; print_r($vars); echo ''; echo '
'; echo '
'; // 通过数组索引(二维)访问配置信息 echo 'xdebug.remote_host='.$vars['Xdebug']['xdebug.remote_host'].'<br>'; echo 'xdebug.remote_port='.$vars['Xdebug']['xdebug.remote_port'].'<br>'; echo ''; ?>
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??? 本文地址:http://ryan-d.iteye.com/blog/1543412

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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 originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

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.


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