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Generate unique ID using PHP uniqid function

Application scenarios for generating unique IDs are very common, such as temporary cache file names, temporary variables, temporary security codes, etc. The uniqid() function generates a unique ID based on the current time in microseconds. Since generating a unique ID is tied to microsecond time, the uniqueness of the ID is very reliable

Dec 28, 2016 pm 03:32 PM

PHP array function sequence array_keys() - Get array key name

The array_keys() function returns a new array containing all the keys in the array. If the second parameter is provided, only the key names with the key value are returned.

Dec 28, 2016 pm 03:22 PM

Analysis of the difference between PHP merge array + and array_merge

In PHP, you can use + or array_merge to combine two arrays, but there are still differences between them, and if you don't understand these differences clearly, it will be fatal in the project!

Dec 28, 2016 pm 03:20 PM

php array_flip() removes duplicate elements from an array

In PHP, there is a function available for removing duplicate elements in an array, which is array_unique(), but it is not the most efficient method. Using array_flip() function will be five times faster than array_unique() about.

Dec 28, 2016 pm 03:18 PM

PHP array function sequence array_unique() - remove duplicate element values ????in the array

The array_unique() function removes duplicate values ??from an array and returns the resulting array. When the values ??of several array elements are equal, only the first element is retained and the other elements are deleted.

Dec 28, 2016 pm 03:17 PM

PHP array function sequence array_slice() - remove a value from the array based on conditions and return it

The array_slice() function removes a segment of value from the array based on conditions and returns

Dec 28, 2016 pm 03:16 PM

PHP uses the array_slice function to obtain a random array or the first few pieces of data

This article mainly introduces the relevant information about how PHP uses the array_slice function to obtain random arrays or the first few pieces of data. Friends who need it can refer to it.

Dec 28, 2016 pm 03:13 PM

Detailed explanation of php rmdir using recursive function to delete non-empty directory instances

We all know that the php rmdir() function is used to delete empty directories, but if we want to delete a non-empty directory, we must delete the files or subdirectories in the non-empty directory. This article introduces how PHP uses recursive functions to delete non-empty directories. Empty directory, friends in need can refer to it

Dec 28, 2016 pm 03:03 PM

Recursively delete directories and files in rrmdir php

The rmdir that comes with PHP can only delete empty directories. This rrmdir can recursively delete the directory and all the files in the directory. However, be careful when using it. Do not delete all the files.

Dec 28, 2016 pm 03:02 PM

PHP delete files and folders using the two functions unlink() and rmdir()

Sometimes we need to use PHP to delete files and folders. PHP originally has functions to achieve this. Let’s simply record the code so that we can follow it later.

Dec 28, 2016 pm 03:00 PM

Description of the method of merging and compressing Seajs modules based on gulp

This article introduces a simple and feasible method to merge and compress seajs in small and medium-sized projects built based on gulp. Friends who are interested can take a look at the details.

Dec 28, 2016 pm 02:08 PM

Loading of dependencies between seajs modules and execution of modules

Front-end projects are inseparable from SeaJS. Many websites now use SeaJS, and people are becoming more and more interested in the principle of this JS module loader. In this article, we will learn about the loading of dependencies between seajs modules and the execution of modules. Friends who are interested can take a look below.

Dec 28, 2016 pm 01:55 PM

PHP debug_backtrace() stack debugging

Dec 28, 2016 pm 01:42 PM

PHP debugging tool debug_print_backtrace()

debug_print_backtrace() is a very low-key function, and few people pay attention to it. But when I call another object on one object and then call another object and a function in the file and an error occurs, it is laughing.

Dec 28, 2016 pm 01:40 PM