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php 获取操作系统、浏览器版本信息(持续更新) - 更多技术 - 清泛网 - 专...

php 获取操作系统、浏览器版本信息(持续更新)有时我们需要在服务器端收集用户操作系统版本,以及用户使用何种浏览器等信息,本文主要提供getOS、getBrowser、getBrowserVer三个方法,对网上各方法进行测试汇总整理,持续更新...
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Submitting a multidimensional array via POST with php

I have a php form that has a known number of columns (ex. top diameter, bottom diameter, fabric, colour, quantity), but has an unknown number of rows, as users can add rows as they need. ...
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Confused about stdin, stdout and stderr?

...mple, the bits stored on the hard disk. A file handle is (usually) a small token used to refer to that file, once you have opened it. – paxdiablo Aug 3 '18 at 0:11 ...
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PHP: merge two arrays while keeping keys instead of reindexing?

... In case anyone wonders 'what if they DO overlap?' : php.net: "The + operator returns the right-hand array appended to the left-hand array; for keys that exist in both arrays, the elements from the left-hand array will be used, and the matching elements from the right-hand arra...
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What does android:layout_weight mean?

...l, layout_weight specifies how much of the extra space in the layout to be allocated to the View. LinearLayout supports assigning a weight to individual children. This attribute assigns an "importance" value to a view, and allows it to expand to fill any remaining space in the parent view. Views' de...
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What is Full Text Search vs LIKE

...ds. Other features typical of full-text search are lexical analysis or tokenization—breaking a block of unstructured text into individual words, phrases, and special tokens morphological analysis, or stemming—collapsing variations of a given word into one index term; for example, treating "m...
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What is an ORM, how does it work, and how should I use one? [closed]

...inciples. There are a lot of ORM libraries around here: Java: Hibernate. PHP: Propel or Doctrine (I prefer the last one). Python: the Django ORM or SQLAlchemy (My favorite ORM library ever). C#: NHibernate or Entity Framework If you want to try an ORM library in Web programming, you'd be better ...
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How to prevent buttons from submitting forms

...xample: on a Login ... with some restrictions... like not allow to be used PHP sessions and neither cookies are allowed! So any link must be converted to such form submit, so the login data is not lost. When no login is yet done, it must also work. So no validation must be performed on links. But I...
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Convert JavaScript String to be all lower case?

...triNg".toLowerCase() Here's the function that behaves exactly the same as PHP's one (for those who are porting PHP code into js) function strToLower (str) { return String(str).toLowerCase(); } share | ...
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Traits in PHP – any real world examples/best practices? [closed]

Traits have been one of the biggest additions for PHP 5.4. I know the syntax and understand the idea behind traits, like horizontal code re-use for common stuff like logging, security, caching etc. ...