'/(<\!--.*-->|<[^>]*>)/s' 意思是遇到<!--任意内容--> 或者 <任何非大于号内容> 两个字符如: $str = "this is a book, <!--book--> I can borrow it to you <It> Because you are my friend!";$ar= preg_split('/(<\!--.*-->|<[^>]*>)/s', $str, -1, PREG_SPLIT_OFFSET_CAPTURE);/* 结果返回:Array ( [0] => this is a book, [1] => <!--book--> [2] => I can borrow it to you [3] => <It> [4] => Because you are my friend! )*/$ar= preg_split('/(<\!--.*-->|<[^>]*>)/s', $str, -1, PREG_SPLIT_OFFSET_CAPTURE);/* 结果返回:Array ( [0] => Array ( [0] => this is a book, [1] => 0 )
[1] => Array ( [0] => I can borrow it to you [1] => 27 )
[2] => Array ( [0] => Because you are my friend! [1] => 55 ) )*/$ar= preg_split('/(<\!--.*-->|<[^>]*>)/s', $str, -1, PREG_SPLIT_NO_EMPTY);/* 结果返回:Array ( [0] => this is a book, [1] => I can borrow it to you [2] => Because you are my friend! )*/我正在使用《Csdn收音机》第一时间获取最新动态!
按照<!-- -->或者是< >去分割字符串
<\!--.*--> 匹配一个 html 注释标记形式的串
<[^>]*> 匹配一个用尖括号括起的串
两者只要有一个匹配成功就算匹配成功
第二个参数:当然是被分割的字符串了
第三个参数:结果返回多少个字符串,-1表示没有限制
第四个参数:有三个常量PREG_SPLIT_NO_EMPTY ,PREG_SPLIT_DELIM_CAPTURE , PREG_SPLIT_OFFSET_CAPTURE
PREG_SPLIT_NO_EMPTY :返回非空的成分;
PREG_SPLIT_DELIM_CAPTURE :定界符模式中的括号表达式也会被返回;
PREG_SPLIT_OFFSET_CAPTURE:返回分割出的字符串在之前所在的位置,也就是偏移量我正在使用《Csdn收音机》第一时间获取最新动态!
'/(<\!--.*-->|<[^>]*>)/s'
意思是遇到<!--任意内容--> 或者 <任何非大于号内容> 两个字符如:
$str = "this is a book, <!--book--> I can borrow it to you <It> Because you are my friend!";$ar= preg_split('/(<\!--.*-->|<[^>]*>)/s', $str, -1, PREG_SPLIT_OFFSET_CAPTURE);/*
结果返回:Array
(
[0] => this is a book,
[1] => <!--book-->
[2] => I can borrow it to you
[3] => <It>
[4] => Because you are my friend!
)*/$ar= preg_split('/(<\!--.*-->|<[^>]*>)/s', $str, -1, PREG_SPLIT_OFFSET_CAPTURE);/*
结果返回:Array
(
[0] => Array
(
[0] => this is a book,
[1] => 0
)
[1] => Array
(
[0] => I can borrow it to you
[1] => 27
)
[2] => Array
(
[0] => Because you are my friend!
[1] => 55
)
)*/$ar= preg_split('/(<\!--.*-->|<[^>]*>)/s', $str, -1, PREG_SPLIT_NO_EMPTY);/*
结果返回:Array
(
[0] => this is a book,
[1] => I can borrow it to you
[2] => Because you are my friend!
)*/我正在使用《Csdn收音机》第一时间获取最新动态!