I. Data Types(Data type):
Perl has four data types: Scalar (variable), Scalar Array (Array), Hash Array (Hash), and References (pointer ), it seems to be rare, but it is more than enough to use it. Especially when writing Perl programs, you do not
one. DataType (data type ):Perl's data types are roughly four: Scalar (variables), Scalar Array (array), hash array (hash), References (pointer), but they seem to be small but more than sufficient. In particular, you can write a Perl program without
The first time I came into contact with Perl was in February October 2008. At that time, due to project reconstruction, I needed a lot of text operations, so I picked up the Perl language "text operations as my mission. Of course, the famous llama
Take over the project that others did before, found SVN in the ignore did not deal with the *.db, resulting in the image cached thumbnail files are submitted, and I just open the picture folder, it means that thumbs.db has changed.
There are two
Chinese string manipulation function
The string manipulation functions in PHP3.0 are more important, as follows:
(1) echo,print,printf,sprintf
Used for output strings. If a variable name is substituted in the string, it is replaced with its value.
Server-side scripting technology is a very useful thing, combining it with client script technology to create a very powerful page. It seems like a long time ago, which version (appears to be the WWW edition) discussed ASP to the point of full swing,
Ordinary PHP Programmer pen TestTags: programmer PHP interview 2009-02-06 15:191. Use PHP to print out the day before, the print format is May 10, 2007 22:21:212. PHP code is as follows:$a = "Hello";$b = $a;Unset ($b);$b = "World";echo $a;What is
The meaning of the offset parameter in the ##################### #read () function
Read (FILEHANBD, $var, $length, $offset)
The read function has four parameters, most easily misunderstood is the $offset
It means to look at the official document and
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
Eight common file operations in PHP applications. The unique PHP syntax is a mix of C, Java, Perl, and PHP self-innovative syntaxes. PHP can execute dynamic web pages faster than CGI or Perl. Dynamic pages made using PHP are a mix of C, Java, Perl,
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