Course Intermediate  11357

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Course Advanced  17659

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Course Advanced  11370

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

Course Introduction：Laravel is a popular PHP framework that provides a lot of features and tools to quickly build web applications. In actual development, we often need to process strings, such as intercepting characters. This article will introduce how to intercept characters in Laravel. 1. Use PHP built-in functions to intercept characters In Laravel, we can use PHP built-in functions to intercept characters. PHP provides three functions to intercept strings: substr(), mb_substr() and mb_strcut(). 1.

2023-04-23 comment 0  1042

Course Introduction：How to intercept the first few characters in PHP: 1. Use the "substr($str, 0, 3);" method to intercept 3 characters starting from the first character on the left; 2. Use "mb_substr($str, 0, 2) , 'utf-8');" method to intercept Chinese strings.

2020-08-10 comment 0  5347

Course Introduction：Interception method: 1. Intercept a single character, the syntax is "string[index]", where "string" represents the source string, and "index" represents the character subscript to be obtained; 2. Intercept a substring, the syntax is "string[start: end" ]", where "start" represents the index of the first character to be intercepted (including this character when intercepting), "end" represents the index of the last character to be intercepted (excluding this character); 3. Get the entire String, syntax "string[:]".

2023-01-12 comment 0  14173

Course Introduction：Versions above PHP7 use Throwable to catch exceptions, and versions below PHP7 use set_error_handler to catch exceptions.

2019-09-04 comment 0  3686

Course Introduction：In Oracle, you can use the substr function to intercept the last few digits of a string. This function is also called the character interception function. It is used to intercept the specified characters in the string. The syntax is "substr (string that needs to be intercepted, - needs to be intercepted). number of digits, the number of digits to be intercepted)".

2022-01-06 comment 0  36503