Common syntax formats:foreach ($arr as $key = = $value) {$arr _str = $arr [' x_id ']. ‘,‘ . $arr _str;}Assume that the characters in the character array $arr areArr[0] = ' a ';Arr[1] = ' B ';ARR[2] = ' C ';Then, after the concatenation of the $arr
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PHP iterates through directories, generates MD5 values for each file in the directory, and writes
Php removes the usage of the last character substr () of the string. In today's project, remove the last character in the string from the original string 1, 2, 3, 4, 5, and 6. The final result is 1, 2, 3, 4, 5, and 6. the code is as follows: $ str
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Original article: http://www.cnblogs.com/KevinYang/archive/2010/06/18/1760597.html
Character
First, the preface
select()when you read a one-to-many amount of information from a database, you often need to split the retrieved array into a specific character and then concatenate it into a string.
Common syntax formats:
foreach
Php deletes the code of the program with the last character of the string. This is the simplest php getting started tutorial. we only need to know a few common functions to delete the last character of the string, such as substr and rtrim. The
Use substr () to remove the last character of the string
"," Must be used to separate the data in the statistical chart. However, when I use a loop to accumulate strings, it is inevitable that there will be one more ",". For example,
PHP Tutorial Configuration Chinese Narration
Let's see what you see, php.ini.
[PHP]
;;;;;;;;;;;; WARNING;;;;;;;;;;;;; This is the default settings file for new PHP installations.; By default, PHP installs itself with a configuration suitable for;
In today's project, we used to remove the last character in the string, so we used substr. we sorted it out to help you learn it. Used in today's project to remove the last character in the string
Original String 1, 2, 3, 4, 5, 6,
Remove the last
Used in today's project to remove the last character in a string
The original string 1,2,3,4,5,6,
Remove the last character "," and the end result is 1,2,3,4,5,6
The code is as follows:
Copy the Code code as follows:
$str = "1,2,3,4,5,6,";$newstr =
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