An analysis of the advantages of the PHP strtok of function

Its advantages are:

1. You can define more than one delimiter at a time. The function is cut by a single delimiter, not by the entire delimiter, and the limit is cut by the entire delimiter string. Therefore, arrow can be cut in Chinese, but strtok can't.

2. During strtok() traversal using while or for, the separator can be changed at any time, and the break can be used to terminate the cutting at any time.

Example 1: demonstrates how to cut with restraint in Chinese

$string = "this is PHP forum forum forum section forum column forum H administrator forum member";
$arr = explode(" forum ",$string);
The foreach ($arr as $v)
{
Echo $v. "< Br / >" ;
}
Echo "-- -- -- -- -- -- -- -- -- -- -- -- -- < Br / >" ;

Returns:

This is a PHP

section
The column
H the administrator
members
-------------

Example 2: demonstrates the replacement of the cutters, noting that there is no longer an "H" separator in the WHILE. I'm just going to use Spaces.

$string = "this is PHP forum forum forum section forum column forum H administrator forum member";
$tok = strtok($string, "H"); / / space + H
$n = 1;
While ($tok! = = false) {
Echo $tok<" Br / >" ;
$tok = strtok (" "); / / space
/ / if ($n> 2) break; // can jump out at any time.
/ / $n++;
}
Echo "-- -- -- -- -- -- -- -- -- -- -- -- -- < Br / >" ;

Returns:

This is a P
P BBS
BBS section
BBS program
Forum H administrator
BBS member
-------------

Example 3: demonstrate multiple delimiters.

$string = "This is\tan example\nstring";
$tok = strtok($string, "\n\t"); # space, line break, TAB
While ($tok! = = false) {
Echo $tok<" Br / >" ;
$tok = strtok (" \ n \ t ");
}
Echo "-- -- -- -- -- -- -- -- -- -- -- -- -- < Br / >" ;

Returns:

This
is
The an
example
The string
-------------

$string = "abcde 123c4 99sadbc99b5232";
$tok = strtok ($string, "BC");
While ($tok! {= "")
Echo $tok<" Br / >" ;
$tok = strtok (" BC ");
}
Echo "-- -- -- -- -- -- -- -- -- -- -- -- -- < Br / >" ;

Returns:

a.
DE 123
4 99 sad
99
5232
-------------

Example 4: demonstrate using for to traverse:

$line = "leon\tatkinson\tleon@clearink.com";
For ($token = strtok ($line, "\ t"); $token! = ""; $token = strtok (" \ t "))
{
Print (" token: $token< BR> \ n ");
}

Returns:

Token: Leon
Token: atkinson
Token: leon@clearink.com