asort

Why? PHPcodefunctiondelDir ($ dir) {$ arr = getcTime ($ dir); asort ($ arr); // $ arr = array ('file name' = & gt; 'creation time') why? PHP code Function delDir ($ dir) {$ arr = getcTime ($ dir); asort ($ arr ); // $ arr = array ('file name'

A two-dimensional array sorting problem in PHP PHP in two-dimensional array ordering, you can use the PHP built-in function Uasort () "Use a user-defined comparison function to sort the values in the array and keep the index associated" The

A1 2014-10-1 10:00:00 A2 2014-10-2 14:00:00 B1 2014-10-4 13:00:00 B2 2014-10-5 15:00:00 A1 is start time, A2 is end time, B1 is start time, B2 is end time Now there's time C1-C2 How to Judge C1-c2, if in A1-A2 or b1-b2 inside or have cross,

Function name usage format input/output operation array generation and Conversion: array () generates an array arrayarray (mixed [...]) array value or, Key & gt; value an array variable without array_combine () generates an array, using the value of

There may times when you want to sort the values inside a array. For example, suppose your array values is not in alphabetical order. Like this one: $full _name = Array (), $full _name["Roger"] = "Waters"; $full _name["Richard"] = "Wright"; $full

Some php array learning notes. There are three types of php arrays: a numeric array with a numeric ID key, and an ID key in an array associated with a value multi-dimensional array containing one or more arrays, there are three types of php arrays:

The process of learning PHP, sorting out some of the commonly used functions, which are array functions. Array (): Generate an array$a = Array ("Dog", "cat", "horse");Print_r ($a); Array ([0] = dog [1] = cat [2] = = horse)Array_combine ():

For Web programming, the most important thing is to access and read/write data. There may be many storage methods, such as strings, arrays, and files. I learned arrays today, which is an important method in PHP Data applications. PHP has a large

Php interview questions (1) supplement: & lt ;? Php/* // permission management of the database tries to write out the database design of a multi-user permission system, requiring the use of role assignment permissions, there are many-to-many

  Chapter 1 PHP Quick Start PHP variables have three styles. Short style: the PHP variable is the same as the form domain name in the HTML form. $ Tireqty Moderate style: $ _ post ["tireqty"] $ _ get $ _ Request Long style: $ http_post_vars

The interview questions collected from the Internet are said to be Yahoo. 1. Which of the following will not add John to the users array? 1. $ users [] = 'john '; 2. array_add ($ users, 'john'); // wrong 3. array_push ($ users, 'john '); 4. $ users |

Php array usage tips and Operations summary, php array usage tips Array is an important method in PHP Data Applications. PHP has a large number of array functions. The following is a summary to help you easily identify them later. 1. array

A large number of array sorting functions are introduced in php. Next we will introduce the usage of php array sorting. The array is used as a parameter of the sorting function. After sorting, the array itself changes. The return value of the

Copy codeThe Code is as follows: $ full_name = array (); $ Full_name ["Roger"] = "Waters "; $ Full_name ["Richard"] = "Wright "; $ Full_name ["Nick"] = "Mason "; $ Full_name ["David"] = "Gilmour "; To sort this array, you just use the assort ()

Search for a specific value in the array. If yes, return TRUE. Otherwise, return FALSE. Boolean in_array (mixed needle, array haystack [, boolean strict]) Find a specified key in the array. If yes, return TRUE. Otherwise, return FALSE.Boolean array_

Array is an important method in PHP Data Applications. PHP has a large number of array functions. The following is a summary of my learning. I will take this note to facilitate future authentication. 1. array Definition The array definition uses the

1. Number Index Array 1.1. initialize the numeric index array To create an array, you can use array () as follows: $ Products = array ('tires', 'oil ', 'spark s s '); If you want to store numbers in ascending order in an array, you can

Sometimes we need more complex sorting. For example, to sort key names, ksort ($ arr) is used here. It sorts the keys of the array and maintains the original key-value relationship. The corresponding asort ($ arr) function is used to sort key values

What is an array?An array is a collection of data, which is equivalent to a container. Data can be stored in this container according to certain rules. This is equivalent to a hotel. There are many rooms in the hotel, and the rooms are numbered

The code is as follows:Copy code Function multi_array_sort ($ multi_array, $ sort_key, $ sort = sort_asc ){If (is_array ($ multi_array )){Foreach ($ multi_array as $ row_array ){If (is_array ($ row_array )){$ Key_array [] = $ row_array [$