Some days ago to help others to optimize the PHP program, get disgraced, and finally opened the fastcgi Cache, is a reluctant to deal with the past it. However, fastcgi cache does not support distributed caching, and when the server is a lot of time, the waste of redundancy will be very serious, in addition to the data consistency problem, so it is only a thick solution.For this type of problem, Srcache is a fine-grained solution. It works roughly as follows:Srcache Working principleWhen the pro
Recently due to the business need to use the Phoenix Spark module, but Phoenix4.10 the following version and Spark2.1.1 incompatible, so plan to upgrade Phoenix. Download Address: http://archive.apache.org/dist/phoenix/apache-phoenix-4.12.0-HBase-1.1/bin/ Apache-phoenix-4.
1, add elements to the array
PHP is a weakly typed language. Therefore, you do not have to declare the length of the PHP array as the C language. The process of adding elements to them is also the process of declaring and initializing them.
Copy Code code as follows:
$capitals = Array (
' Alabama ' => ' Montgomery ',
' Alaska ' => ' Juneau ',
' Arizona ' => ' Phoenix '
);
It's also simple to continue adding elements
: 'd to the birds and beasts. ' The original Star of the West was a bear and an owl, but later the Ancient Ship's totem was changed from a bear to a dragon. When the Yellow Emperor went east, the dragon's totem was taken to the east, and combined with the 'oriental dragon constellation ', Zhu bird became the new home of the Phoenix totem in the kingdom of heaven when it unified the south, the combination of the two tribes finally became 'Dragon and
1. Adding array elementsPHP is a weak type language, which means you don't need to display an array and its size, instead, you can declare and populate the array at the same time.
The code is as follows
Copy Code
$capitals = Array (' Alabama ' => ' Montgomery ',' Alaska ' => ' Juneau ',' Arizona ' => ' Phoenix ');
Additional array elements can be appended as follows:
$capitals [' Arkansas '] = ' Little rock '; I
information age to grab customers to take the initiative. The advertisement on the city evening paper is very good, but it seems to have a bottleneck in the amount of business it brings. Lao Zhang Shing, finally from the enthusiastic Baidu retailer, opened a Phoenix Nest account. People are not really white retailers, the company's two telephones rang non-stop, and indeed the volume of business increased greatly, but ...
In the process of developing using PHP, sooner or later, you will need to create many similar variables, at which point you can store the data as an element in an array. The elements in an array have their own IDs, so you can easily access them. Associative ArraysAn associative array in which each of its ID keys is associated with a value. Using a numeric array is not the best way to store data about a specific named value. By associative arrays, we can use values as keys and assign values to th
1. add elements to arrayPhp is a weak language. Therefore, you do not need to declare the length for the php array like the C language. The process of adding elements to it is also a process of declaration and initialization.Copy codeThe Code is as follows:$ Capitals = array ('Babama' => 'mongomery ','Apache' => 'juneau ','Arizona '=> 'phoenix'); It's easy to add more elements.Copy codeThe Code is as follows:$ Capitals ['arkansas '] = 'little Rock ';
PHP related array usage tips. During PHP development, you need to create many similar variables early or late. at this time, you can store data as elements in the array. Elements in the array are either in PHP development or early or late. you need to create many similar variables. in this case, you can store data as elements in the array. All elements in the array have their own IDs, so they can be easily accessed.
Join array
Join array. each ID key is associated with a value. It is not the bes
' => 'Phoenix' );
The additional array elements can be appended as follows:
$capitals['Arkansas'] = 'Little Rock';
If you are processing a numeric index array, you may want to use the frontend and append elements of the display naming function, such as the array_push () and array_unshift () functions, but these functions cannot operate the associated array.
2. delete array elementsTo delete an element from an array, use the unset () function, for
what is an array?
You will need to create many similar variables in the process of using PHP for development, either early or late.
Without a lot of similar variables, you can store the data in an array as an element.
Elements in the array have their own IDs, so they can be easily accessed.
Associative arraysAn associative array in which each ID key is associated with a value.Using numeric arrays is not the best practice when storing data about a specific named value.With associative arrays, w
1. Adding elements to the array
PHP is a weakly typed language. Therefore, it is not necessary to declare the length for PHP array as in C language. The process of adding elements to them is also the process of declaring and initializing them.
Copy CodeThe code is as follows:
$capitals = Array (
' Alabama ' = ' Montgomery ',
' Alaska ' = ' Juneau ',
' Arizona ' = ' Phoenix '
);
It's also easy to continue adding elements
Copy CodeThe code is as fol
what is an array?
In the process of developing using PHP, sooner or later, you will need to create many similar variables.
Without a lot of similar variables, you can store the data as an element in an array.
The elements in an array have their own IDs, so you can easily access them.
Associative Arrays
An associative array in which each of its ID keys is associated with a value.
Using a numeric array is not the best way to store data about a specific named value.
By associative arrays, we ca
In fact, the operations on arrays in any computer language are a learning, and PHP is no exception. Next I want to introduce 10 tips and related functions for array Operations in PHP.
In fact, the operations on arrays in any computer language are a learning, and PHP is no exception. Next I want to introduce 10 tips and related functions for array Operations in PHP.
1. add elements to array
Php is a weak language. Therefore, you do not need to declare the length for the php array like the C
',
'Apache' => 'juneau ',
'Arizona '=> 'Phoenix'
); Additional array elements can be appended as follows:
$ Capitals ['Arkansas '] = 'Little Rock'; if you are processing a numeric index array, you may want to use the frontend and append elements of the display named function, such as array_push () and array_unshift () functions, but these functions cannot be used to associate arrays.
2. delete array elements
To delete an element from an array, use
In the process of using PHP for development, or early or late, you will need to create many similar variables, and you can store the data as an element in an array. Elements in the array have their own IDs, so they can be easily accessed.
Associative arrays
An associative array in which each ID key is associated with a value. Using numeric arrays is not the best practice when storing data about a specific named value. With associative arrays, we can use values as keys and assign values to them.
what is an array?
You will need to create many similar variables in the process of using PHP for development, either early or late.
Without a lot of similar variables, you can store the data in an array as an element.
Elements in the array have their own IDs, so they can be easily accessed.
Associative Arrays
An associative array in which each ID key is associated with a value.
Using numeric arrays is not the best practice when storing data about a specific named value.
With associative arra
; 'Montgomery', 'Alaska' => 'Juneau', 'Arizona' => 'Phoenix' );
The additional array elements can be appended as follows:
$capitals['Arkansas'] = 'Little Rock';
If you are processing a numeric index array, you may want to use the frontend and append elements of the display naming function, such as the array_push () and array_unshift () functions, but these functions cannot operate the associated array.2. delete array elementsTo delete an element f
This article will introduce 10 PHP-related Array Operations and help you improve development efficiency.
1. Add array elements
PHP is a weak type language, which means you do not need to declare an array and its size. On the contrary, you can declare and fill the array at the same time.
$ Capitals = array (
'Babama' => 'mongomery ',
'Apache' => 'juneau ',
'Arizona '=> 'phoenix'
);
The additional array elements can be appended as follows:
$ Ca
spaces are still regarded as one separator), but separators can be changed from spaces to any other character. For demonstration, see the following employee list file saved as emp_names: 46012 dulaney evan mobile short durham jeff mobile short steen bill mobile AL46017 feldman evan mobile AL46018 swim steve unknown uncle bogue robert phoenix Jun june micah phoenix short kane sheryl unknown mongowood willia
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.