Purpose
The SUBSTR functions return a portion of chars, beginning at character position, substring_length characters long. SUBSTR calculates lengths using characters as defined by the input character set. SUBSTRB uses bytes instead of characters.
The split string is a number of linesExample one: Require that ' king ' in the table emp be split into four lines per line of wordsNote: substr (str,pos): intercepts the character at the beginning of POS position;SUBSTR (Str,pos,len): Selects the
Oracle substr function usageObtain the substr (string, start_position,
[
Length
]
)For example:Substr (
'
This is a test
'
,
6
,
2
) Wowould
Return
'
Is
'
Substr (
'
This is a test
'
,
6
) Wowould
Std: Implementation of substr in Multi-Byte Character Set, stdsubstr
Yesterday I wrote "cross-platform (PC, Android, IOS, WP) encoding/decoding method using multi-byte character sets", and mentioned that the server uses std: string to process
This article describes the use of string length interception in PHP. Share to everyone for reference, as follows: PHP provides a lot of use of functions, where the interception function of the string is no exception, and the function is very
This article describes the use of string length interception in PHP. Share to everyone for reference, as follows: PHP provides a lot of use of functions, where the interception function of the string is no exception, and the function is very
This article introduces the use and difference of the string interception function in PHP, substr (), Mb_substr () and mb_strcut, and it is necessary for friends to refer to it.First, look at the substr function. The PHP substr () function is used
Php function substr intercepts Chinese characters with garbled characters solution
This article describes how to use the php string truncation function substr to intercept Chinese characters and troubleshoot garbled characters. For more
This article mainly introduces four functions and examples of using strings in php. For more information, see
1. obtain some strings.
The code is as follows: string substr (string, int start, int [length]);
This function extracts the start
Substr definition and usage
The substr () method extracts a specified number of characters starting with the start subscript from a string.
SyntaxStringobject. substr (START, length)
Parameters
Description
Start
Substr (str, start, length );
Example: substr ('php tutorial is very good language );
Output is ve;
If the length of start> str is returned ();
Substr ('php is very good language );
Substr ('php is very good language ', 4 );
Output as
I have read the previous documents these days. When I see substring (), slice (), and substr (), I am not clear about the differences between them. After reading the materials and verifying them in person, I will make the following summary: first,
Use details of "PHP" substr note
Author: zhanhailiang Date: 2012-12-06
SUBSTR can only be used to intercept single-byte encoded strings, which can be garbled when using substr to intercept multibyte strings:
Cases:
$a = "Baidu, you are
I. Definition and usage1.substringThe substring () method is used to extract the character of a string intermediary between two specified subscripts.The substring () method returns a substring that includes the character at the beginning , but does
PHP string get substr with strstr function PHP string getUsed to get the specified string from a string.The relevant functions are as follows:
SUBSTR (): Get a portion of it from a string
Strstr (): Finds the position of the first
This article mainly introduces the slice, Substring and substr functions of JavaScript intercepting strings, which can be referenced by friends in the following In JavaScript, extracting substrings is mainly done through Slice, Substring, Substr,
This article describes the use of substr () and explode () functions in PHP. Share to everyone for your reference. The specific methods are as follows:
SUBSTR (string,start,length): This function extracts the length character of the string from the
Oracle | | and (+) + substr function Usage Summary"Substr function Usage"SUBSTR (string, intercept start position, intercept length)//return intercepted wordsubstr (' Hello World ', 0, 1)//return result is ' H ' * start with a string of length 1
PHP substr () function parameter explanation and usage explanation, phpsubstr
substr(string,start,length)
Parameters:
1. string is the string you want to intercept
2. start refers to the start position to be intercepted (0 indicates starting from
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