basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Gets the value of the array Array_keys ($arr), gets the key name of the array array_flip ($arr), and the values in the array are exchanged with the key
About the author
Wang Dandan, IBM China System and Technology Center software engineer, since 2006 joined IBM, has been engaged in WEB system design and development work, has five years experience in PHP application design and development.
Usually
This article mainly introduces the summary, syntax, parameters, and working principle of the reduce JavaScript array method, which is easy to understand. You can check Array. prototype. reduce ()
Overview
The reduce () method is an instance method
Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if
PHP uses arrays to reduce the time complexity of the program. As the hardware configuration of devices continues to improve, the space complexity of algorithms is also relaxed for small and medium-sized applications. However, in today's Web era,
Php array required
Foreach ($ prices as $ key => $ value)
Echo $ key. '=>'. $ value .'';
The following code uses the each () structure to print the content of the $ prices array:
While ($
About the author
Wang Dandan, software engineer of IBM China system and technology center, has been engaged in web system design and development since joining IBM in 2006. He has been using PHP for five
When writing a program, developers usually translate the operation logic that has been designed or conceived directly in programming languages. About the Author
Wang Dandan, a software engineer at IBM China system and technology center, has been
When writing a program, developers usually translate the operation logic that has been designed or conceived directly in programming languages. About the Author
Wang Dandan, a software engineer at IBM China system and technology center, has been
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