blocks|key|881526|text|split使用POSIX+ERE，preg_split使用PCRE。查看此PHP+manual+page+on+the+differences+of+PCRE+from+POSIX+ERE和flavor+comparison+on+Regular-Expressions.info。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|881527|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/split|1|http://www.regular-expressions.info/posix.html#ere|2|http://php.net/preg_split|3|http://www.regular-expressions.info/pcre.html|4|http://php.net/reference.pcre.pattern.posix|5|http://www.regular-expressions.info/refflavors.html^0|0|5|H|A|0|5|0|7|9|1|H|A|2|T|4|3|11|1L|4|2N|19|5|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]|$9|10|A|11|B|C]]|D|@$9|12|A|13|1|14]|$9|15|A|16|1|17]|$9|18|A|19|1|1A]|$9|1B|A|1C|1|1D]|$9|1E|A|1F|1|1G]|$9|1H|A|1I|1|1J]]|E|$]]|$1|F|3|-4|5|6|7|1K|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]|P|$5|I|J|K|E|$L|Q]]|R|$5|I|J|K|E|$L|S]]|T|$5|I|J|K|E|$L|U]]|V|$5|I|J|K|E|$L|W]]]]

<a href="http://php.net/split" rel="nofollow"><code>split</code></a> uses <a href="http://www.regular-expressions.info/posix.html#ere" rel="nofollow">POSIX ERE</a> and <a href="http://php.net/preg_split" rel="nofollow"><code>preg_split</code></a> uses <a href="http://www.regular-expressions.info/pcre.html" rel="nofollow">PCRE</a>. See this <a href="http://php.net/reference.pcre.pattern.posix" rel="nofollow">PHP manual page on the differences of PCRE from POSIX ERE</a> as well as the <a href="http://www.regular-expressions.info/refflavors.html" rel="nofollow">flavor comparison on Regular-Expressions.info</a>.

blocks|key|4357142|text|简单，split()：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4357143|4357144|警告|blockquote|4357145|4357146|自PHP+5.3.0起，此函数已被弃用。非常不鼓励依赖此功能。|4357147|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|L|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|M|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|J|$]]

Easy, split() :

<blockquote>
 Warning
 
 This function has been DEPRECATED as of PHP 5.3.0. Relying on this
 feature is highly discouraged.
</blockquote>

blocks|key|881564|text|preg_split()使用与PERL兼容的正则表达式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|881565|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

preg_split() uses PERL-compatible regular expressions.

blocks|key|573994|text|preg_split()，它使用与Perl兼容的正则表达式语法，它是faster.alternative+to+split()。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|573995|entityMap^0|0|C|1K|7|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

<code>preg_split()</code>, which uses a Perl-compatible regular expression syntax, which is faster.alternative to <code>split()</code>.

blocks|key|574077|text|split()使用POSIX作为它的正则表达式扩展，而preg_split()使用PCRE(Perl兼容正则表达式)作为它的正则表达式扩展。PCRE具有扩展的正则表达式功能。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|574078|另一个主要区别是split不区分大小写，而preg_split使用区分大小写的正则表达式。对于区分大小写的正则表达式，我们通常使用spliti。|offset|length|574079|(以上所有内容均来自http://phppot.com/php/reasons-why-split-is-deprecated/)|574080|因此，根据php.net+(http://php.net/manual/en/function.preg-split.php)，PCRE和POSIX正则表达式之间的主要区别|574081|574082|从PHP5.3.0开始，POSIX+Regex扩展被弃用。POSIX正则表达式和PCRE正则表达式有许多不同之处。本页列出了在转换到PCRE时需要了解的最值得注意的问题。|blockquote|574083|574084|574085|PCRE函数要求模式由delimiters.|574086|Unlike+|unordered-list-item|style|BOLD|574087|
|574088|封装，PCRE扩展没有用于不区分大小写的匹配的专用函数。相反，这是使用i+(PCRE_CASELESS)+pattern修饰符来支持的。其他模式修饰符也可用于更改匹配POSIX函数会查找最左侧的最长匹配，但strategy.|574089|574090|The会在第一个有效匹配时停止。如果字符串根本不匹配，则没有任何区别，但如果匹配，则可能会对结果匹配和匹配速度产生重大影响。为了说明这一区别，请考虑Jeffrey+Friedl的“掌握正则表达式”中的以下示例。使用模式一(自)？(自给自足)？使用PCRE时，字符串on+_+oneself将导致匹配自己，但使用POSIX时，结果将是完整的字符串on_oneself。这两个(子)字符串都与原始字符串匹配，但POSIX要求最长的字符串是结果。|574091|574092|“字符类”的POSIX定义与PCRE的定义不同。以PCRE字符类的形式支持匹配一组显式字符的简单括号表达式，但不支持POSIX排序元素、字符类和字符等效项。为表达式提供同时以:，，开头和结尾的字符类。或=字符到PCRE会被解释为试图使用这些不受支持的功能之一，并导致编译错误。|574093|574094|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.spliti.php|1|http://phppot.com/php/reasons-why-split-is-deprecated/|2|http://php.net/manual/en/function.preg-split.php^0|0|1T|6|0|0|A|1I|1|0|E|1C|2|0|0|0|0|0|0|0|7|0|0|0|M|0|0|0|G|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1K|8|@]|9|@$D|1L|E|1M|1|1N]]|A|$]]|$1|F|3|G|5|6|7|1O|8|@]|9|@$D|1P|E|1Q|1|1R]]|A|$]]|$1|H|3|I|5|6|7|1S|8|@]|9|@$D|1T|E|1U|1|1V]]|A|$]]|$1|J|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1X|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|20|8|@]|9|@]|A|$]]|$1|R|3|S|5|T|7|21|8|@$D|22|E|23|U|V]]|9|@]|A|$]]|$1|W|3|X|5|6|7|24|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|T|7|25|8|@$D|26|E|27|U|V]]|9|@]|A|$]]|$1|10|3|X|5|6|7|28|8|@]|9|@]|A|$]]|$1|11|3|12|5|T|7|29|8|@$D|2A|E|2B|U|V]]|9|@]|A|$]]|$1|13|3|X|5|6|7|2C|8|@]|9|@]|A|$]]|$1|14|3|15|5|T|7|2D|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|2E|8|@]|9|@]|A|$]]|$1|17|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]]|18|$19|$5|1A|1B|1C|A|$1D|1E]]|1F|$5|1A|1B|1C|A|$1D|1G]]|1H|$5|1A|1B|1C|A|$1D|1I]]]]

split() uses POSIX as it's regex extension while preg_split() uses PCRE(Perl Compatible Regular Expression) as it's regex extension. PCRE has extended regex features.

Another main difference is that split is case insensitive while preg_split uses case sensitive regex. For case sensitive regex we used to use <a href="http://php.net/manual/en/function.spliti.php" rel="nofollow noreferrer">spliti</a>.

(Everything above from <a href="http://phppot.com/php/reasons-why-split-is-deprecated/" rel="nofollow noreferrer">http://phppot.com/php/reasons-why-split-is-deprecated/</a>)

So, the main difference between PCRE and POSIX regex as per php.net (<a href="http://php.net/manual/en/function.preg-split.php" rel="nofollow noreferrer">http://php.net/manual/en/function.preg-split.php</a>)

<blockquote>
 As of PHP 5.3.0, the POSIX Regex extension is deprecated. There are a
 number of differences between POSIX regex and PCRE regex. This page
 lists the most notable ones that are necessary to know when converting
 to PCRE.
 
 <ul>
 <li>The PCRE functions require that the pattern is enclosed by delimiters.</li>
 <li>Unlike POSIX, the PCRE extension does not have dedicated functions for case-insensitive matching. Instead, this is supported using the i
 (PCRE_CASELESS) pattern modifier. Other pattern modifiers are also
 available for changing the matching strategy.</li>
 <li>The POSIX functions find the longest of the leftmost match, but PCRE stops on the first valid match. If the string doesn't match at all it
 makes no difference, but if it matches it may have dramatic effects on
 both the resulting match and the matching speed. To illustrate this
 difference, consider the following example from "Mastering Regular
 Expressions" by Jeffrey Friedl. Using the pattern
 one(self)?(selfsufficient)? on the string oneselfsufficient with PCRE
 will result in matching oneself, but using POSIX the result will be
 the full string oneselfsufficient. Both (sub)strings match the
 original string, but POSIX requires that the longest be the result.</li>
 <li>The POSIX definition of a "character class" differs from that of PCRE. Simple bracket expressions to match a set of explicit characters
 are supported in the form of PCRE character classes but POSIX
 collating elements, character classes and character equivalents are
 not supported. Supplying an expression with a character class that
 both starts and ends with :, . or = characters to PCRE is interpreted
 as an attempt to use one of these unsupported features and causes a
 compilation error.</li>
 </ul>
</blockquote>

Can anybody tell me the main difference between split and preg_split in php?
As both functions works on regular expressions.

Thanks

Difference between split and preg_split in php

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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谁能告诉我php中split和preg_split的主要区别？因为这两个函数都适用于正则表达式。谢谢

问php中split和preg_split的区别
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