PHP learns scattered notes-string splits, fetch functions, and single double quotes. , Fetch double Quotes
1 string splitting--split () function and Preg_split () function
Split-using regular expressions to split strings into arrays--seemingly PHP5.
[PHP source reading]explode and implode functions, Explodeimplode
The explode and implode functions are primarily used as string-array operations, such as taking a parameter to split a string based on a character, or using one word to match the
Segmentation GBK Chinese garbled problem solved, segmentation GBK Chinese garbled
Recently encountered a magical word "Mingtao (TAO)".
The specific process is this:
1 $list Explode (' | ', ' ABC Mingtao |BC '); 2 Var_dump ($list);
Get the result of
In the previous article, why? {N} {m, n} {n.} refers to the http://www.2cto.com/kf/201202/118458.html...
// Technical knowledge of regular expressions
// [] Define character set and example [a-z] [A-Z] [0-9] [\ f \ r \ n \ t]
// Positioning
(1) the first two functions of echo, print, printf, and sprintf are output strings. if there is a variable name in the string, it is converted to its value. the last two functions are similar to C functions with the same name. (2) strchr, strlen,
When playing games, especially when there are many conversations, such as RPG games, the problem of broken line display of text is often encountered.How can we make the text better displayed no matter how it changes? The following function can split
PHP development of common string manipulation functions, PHP development of String functions
1, stitching strings The concatenation of strings is one of the most commonly used string operations, and in PHP there are three ways to stitch strings,
Ec (2); 1. concatenating String concatenation strings is one of the most common string operations. In the php tutorial, You Can concatenate strings in three ways: Dots. separator {} operation, and dot equal sign. the dot equals sign can be used to
1. how to define variables? How do I check whether variables are defined? How to delete a variable? Determines whether a variable is null? Isset () unset () empty () 2. what is a variable? A variable name can be dynamically set and used. $ A = & amp;
Preg_grep
(PHP 4, PHP 5)
Preg_grep--Returns the array unit that matches the pattern
Description
Array Preg_grep (string pattern, array input [, int flags])
Preg_grep () returns an array that includes cells in the input array that match the given
Later slowly add/** * Function: Format byte size * @param number $size bytes * @param string $delimiter number and unit delimiter * @return string formatted with The size of the unit*/functionFormat_bytes ($size,$delimiter= ' ') { $units=Array('
strings, dates, and numbers are the most commonly used data objects in Java programs, and the creation, modification, formatting, and transformation of these data are incorporated into every corner of the Java program and must be mastered. This
14. Regular Expressions
A regular expression is a powerful tool for working with strings, but it is not unique to Python, and many programming languages support regular expressions, and there is little difference in usage;The regular
Previous http://www.bkjia.com/kf/201202/118458.html// Technical knowledge of Regular Expressions // [] Define Character Set and example [a-z] [A-Z] [0-9] [\ f \ r \ n \ t] // Positioning character ^ [A-Z] [0-9] $ beginning and end // Quantifiers *
Android Home Key listener and androidhome listenerAndroid Back Home key listener
Back key listening
It is easier to listen for the Back key. It can be intercepted in multiple system callbacks, for example, inIn the following methods of activity,
1. How to define variables? How do I check whether variables are defined? How to delete a variable? Determines whether a variable is null?Isset ()Unset ()Empty ()
2. What is a variable?A variable name can be dynamically set and used.$ A = 'hello', $
The character string operation function PHP3.0 has many character string operations, including (1) echo, print, printf, and sprintf. if there is a variable name in the string, it is replaced with its value. the last two functions are similar to C
Early knowledge of sed and gawk in Linux Command Line and shell script ProgrammingThe sed editor of the Text Processing editor can process data in a data stream based on commands that are input to the command line or stored in the Command text file.
basic usage of 1.stringify functionsThe purpose of the Stringify function is to serialize the object, that is, to convert the object type to a string type (the default delimiter ("&") and the quantifier ("="), and this section first describes its
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