一年没来,循例散分
照旧,发两个自用的“小”东西,给点改善意见的多些分,纯接分的巡查管理员应该会删贴的,嘿嘿
注:因为是自用,传入基本是格式正规的,所以没有做容错,这个用者自理
//搜索文件中的字串,返回所在行的行号
<br />$lines=new ArrayIterator(file(文件名));<br />$regex = 搜索用的正则; //必须是正则,因为下面的迭代器是正则迭代器<br />$regexFilter = new RegexIterator($lines, $regex, RegexIterator::GET_MATCH);<br />$items = iterator_to_array($regexFilter);<br />//其实上面这段东东还能更广泛应用,善用对处理大文件有很大帮助,自己去举一反三吧<br /><br />$keys = array_keys($items); //如果你搜索的值不是唯一的,这里就是多个行号的数组(注意第一行是“0”)<br />$lineNumber = $keys[0]; //如果你搜索的值是唯一的,这里就是你要的行号<br />
//对行列(矩阵)数组交换一维和二维键
什么是矩阵数组,每一维键名存在且顺序是对应的二维数组,简单举例就是SQL后得到的二维数组,当然还有更多
注意是顺序对应,不然没有意义,两维都是数字键名也能用,但数字键名感觉也是意义不大,因为数字键名用交并差很方便的
<br />class squareArray<br />{<br /> public function swapRowCol($array)<br /> {<br /> $mit = new MultipleIterator(MultipleIterator::MIT_KEYS_ASSOC);<br /> foreach ($array as $key => $value) { $temArr = new ArrayIterator($value); $mit->attachIterator($temArr, $key); }<br /> $arr = array();<br /> foreach ($mit as $item) array_push($arr,$item); //这里本来想直接iterator_to_array省循环,但出错,不解<br /> if (isset($array[0])) $arr = array_combine(array_keys($array[0]),$arr);<br /> return $arr;<br /> }<br />}<br />//类中只写了一个交换方法,有兴趣的人可以自行扩展<br />
SPL代码很简洁,可惜文档太少了,很多都要自己写后测试看结果,累啊
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是好久没来了,还以为你跳出苦海了呢
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在沙发上迷糊一会~

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过来加点人气
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唉~~~~我这都为分少而蛋痛的不得了,楼主还挥分如土……技术烂伤不起啊~~~~~~~~~~
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几小时没来 赶紧来接分 高呼代码共享万岁.
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支持一个,都没有看到代码呢
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接分积分,很久没来了
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开源万岁~
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谢谢楼主分享,坐等牛人的改进方案
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悄悄的路过。。。支持。。。。。
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过来加点人气
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我党需要楼主这样的人才,入党吧。

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ArrayIterator 是个高深的东西,文档太少,表示不解
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小东西大用处,不懂PHP,学习来着,坐等高人
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112341354354
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我背着麻袋来接...
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PHP貌似不是很难学......
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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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