Unix Function Example

GDB is a powerful UNIX program debugging tool released by the GNU Open source organization. Perhaps, you like the graphical interface, such as VC, BCB debugging IDE, but if you are in the UNIX platform to do the software, you will find that the debugging tool GDB is more than VC, BCB graphics debugger more powerful features. The so-called "inch, the ruler is short" is this truth. In general, GDB mainly help you to complete the following four aspects of the function: Start your program, you can follow the custom requirements of the arbitrary running of the program ...

This article mainly describes how to use PHP file functions to obtain file information. First of all let's take a look at the basic introduction to the PHP file functions Differences between the dirname () and basename () functions in the dirname () file dirname () Get the directory portion of the file directory path, and basename () Get the basic information of the file? Before introduced the PHP directory read instance, we only traverse the directory (folder) function listSubDir based on ...

Php:time (), date (), Mktime () php:time (), date (), mktime () Date and time function library {often forgets} Checkdate: Verify the correctness of the date. Date: Formats the time of the server. Strftime: Formats the server's time locally. GETDATE: Get time and date information. Gettimeofday: Get the current time. Gmdate: Get the present and ...

The PHP date () function PHP date () functions to format the timestamp as a more readable date and time. The syntax date (format,timestamp) parameter describes the format required. Specify the format of the timestamp. Timestamp optional. Specify a timestamp. The default is the current date and time. PHP Date-What is a timestamp (Timestamp)? Timestamp is since January 1, 1970 (unlimited GMT) ...

It can be said that there are two different kinds of applications on the iphone today: one that focuses on something and then makes it deep, while the other is trying to do a lot of different things in an application. 　　So which of these two is better? And that's what the author's article wants to discuss. The philosophy of both approaches the current OS X OS Core is UNIX, and for this, Mike Gancarz, one of the X window team members, once had the following on Unix ...

Mktime (PHP3, PHP4) mktime---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Acquisition Date UNIX timestamp syntax: int mktime (int hour, int minute, int second, int month, int day, int years [...)

Mcrypt_get_cipher_http://www.aliyun.com/zixun/aggregation/11696.html ">name Gets the name of the encoding. Syntax: string mcrypt_get_cipher_name (int cipher); Return value: String function kind: Code processing Content Description This function is used to obtain the name of the encoding. The return value is the name string, without the specified ...

This paper introduces how to build a network database application method by MySQL of the golden combination of Web database, PHP is a server-side embedded hypertext Processing language similar to Microsoft ASP, it is a powerful tool to build dynamic website. While MySQL is a lightweight SQL database server that runs on a variety of platforms, including Windows NT and Linux, and has a GPL version, MySQL is considered the best product for building a database-driven dynamic Web site. PHP, MySQL, and Apache are Linux ...

MCRYPT_OFB use OFB to add/decrypt data. Syntax: string mcrypt_ofb (int cipher, string key, string data, int mode, string iv); Return value: String function kind: Encoding processing content Description This function uses OFB password to retrieve this (output feedback), encrypt and decrypt the data. parameter cipher to add/decrypt method, for example ...

Two-dimensional drawing Maxima the instruction of two-dimensional drawing is plot2d. Let's say we're going to draw 4x3−2x−2 this function, set the x-axis range from 5 to 5, on this command: (%I1) PLOT2D ([4 * x^3-2 * x-2],[x,-5,5]); Three-dimensional drawing is also as easy as the three-dimensional drawing, as long as the Plot3d instructions can be replaced: (%I2) plot3d (cos (-X^2+Y^3/4), [x,-4,4], [y,-...