String Compare Function

STRNATCMP (PHP4 >= 4.0rc2) strnatcmp---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Use the natural order algorithm to compare the string syntax: int strnatcmp (String str1, String str2) Description: This function performs a comparison algorithm, it will press ...

STRNCMP (PHP4 >= 4.0b4) strncmp---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; String comparison syntax for the number of characters specified: int strncmp (String str1, string str2, int len) Description: This function is similar to strcmp () ...

PHP's ability to handle strings is powerful and varied, but sometimes you need to choose the simplest and most ideal solution. 　　This article lists 10 common examples of string processing in PHP and provides the best way to handle them. 1. Determine the length of a string this is one of the most obvious examples of the article, the question is how we determine the length of a string, here we can not but mention the strlen () function: $text = "Sunny Day" ...

STRNATCASECMP (PHP4 >= 4.0rc2) strnatcasecmp---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp ; The use of natural sequential algorithms, case-insensitive, is used to compare string syntax: int strnatcasecmp (String str1, String str2) description ...

Web effects Verify that the string is a numeric function many times we need to verify that the user entered the information is a pure number, now we have defined the number of letters 0-9, so that the user input data to compare, if it is OK.    */function Checkifnumber (str) {var letters = "1234567890"; .

Ereg_replace (PHP3, PHP4) ereg_replace---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Formal expression substitution Syntax: String ereg_replace (string pattern, string replacement, String Strin ...)

Several get all the hyperlink address codes in the HTML string $ss = "<a href= ' 1.gif ' >d</a>adfxx<a href=" dir.html ">dir</a>";     Print_r (Gethref ($SS)); function Gethref ($temp)

MySQL provides standard SQL pattern matching and a format based on pattern matching of extended regular expressions like Unix utilities such as vi, grep and sed. Standard SQL Pattern Matching SQL pattern matching allows you to match any single character with "_" and "%" with any number of characters (including zero characters). In MySQL, the default SQL mode is case-insensitive. Here are some examples. Note that you can not use = or! = While you are using SQL mode, and use LIKE or NOT LIKE to compare operators ...

The difference between 1.echo and print echo and print in PHP basically the same function (output), but there are still some nuances between the two. echo output does not return a value, but print returns the value, when its implementation fails to return flase. Therefore, it can be used as a normal function. For example, after executing the following code, the value of variable $ r will be 1. Copy PHP content to the clipboard PHP code: $ r = print "Hello World"; This means print ...

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...