10 recommended articles about flip()

The method is as follows: $arr = array(…………);//Suppose there is an array of 10,000 elements with repeated elements. $arr = array_flip(array_flip($arr)); //This will remove duplicate elements. What the hell is going on? Let’s look at the function of array_flip(): array_flip() is used to exchange the key and value of each element of an array, such as: $arr1 = array ("age" => 30, "name" => "Happy Garden"); $arr2 = array_flip($arr1); //$arr2 is array(30 => "age", "Happy Garden" => "name"); In PHP arrays, different elements are allowed The same value can be taken, but the same key name is not allowed to be used by different elements, such as: $arr1 = array ("age" =&

1. About array_flip() 10 articles recommended

Introduction: The method is as follows: $arr = array(………… ) ;//Suppose there are duplicate elements in an array of 10,000 elements.  $arr = array_flip(array_flip($arr)); //This way, duplicate elements can be deleted.  What is going on? ? Let’s look at the function of array_flip(): array_flip() is used to exchange the key and value of each element of an array, such as: $arr1 = array (”...

2. Detailed introduction to the array_flip function

##Introduction: The method is as follows: $ arr = array(…………);//Suppose there are 10,000 elements in the array and there are duplicate elements in it. $arr = array_flip(array_flip($arr)); //This way, duplicate elements can be deleted. What's going on? Let's take a look at the function of array_flip(): array_flip() is used to exchange the key and value of each element of an array, such as: $arr1 = array ("age" => 30, "name" => "Happy Garden"); $arr2 = array_flip($arr1); //$arr2

3. php array_flip() Delete duplicate elements from the array

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

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php uses the array_flip() function to delete duplicate elements in the array

Introduction: Summary: In PHP, there is an available function to delete duplicate elements in an array, that is array_unique(), but it is not the most efficient method. Using the array_flip() function will be more efficient than array_unique() is about five times faster. ...

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arrays.sort PHP array_flip special function to delete duplicate array elements

Introduction: arrays. sort:arrays.sort PHP array_flip special function for deleting duplicate array elements: Description array array_flip (array trans) Array_flip() returns a reversed array, for example, the key name in trans becomes the value, and the value in trans becomes Key name. Note that the value in trans needs to be a legal key name, for example, it needs to be integer or string. A warning will be emitted if the value is of the wrong type, and the key/value pair in question will not be reversed. If the same value appears multiple times

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php array_flip() Delete duplicate elements from array_PHP tutorial

Introduction: php array_flip() removes duplicate elements from an array. The method is as follows: $arr = array(…………);//Suppose there is an array of 10,000 elements with repeated elements. $arr = array_flip(array_flip($arr)); //This will remove duplicate elements.

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PHP array_flip() Special function to delete duplicate array elements_PHP tutorial

Introduction: PHP array_flip() is a special function to delete duplicate array elements. Description array array_flip (array trans) array_flip() returns a reversed array, for example, the key names in trans become values, and the values ​​in trans become key names. Pay attention to the value in trans

8. php array function sequence array_flip() swaps the array key name and value_PHP tutorial

Introduction: PHP array function sequence array_flip() swaps the array key names and values. array_flip() Definition and Usage The array_flip() function will swap the keys of an array with their corresponding values, that is, the keys become values, and the values ​​become keys. The array_flip() function returns an inverted value

9. php compares the size of values ​​in multi-dimensional arrays and sorts the implementation code_PHP tutorial

Introduction: PHP compares the size sorting implementation code of values ​​in multi-dimensional arrays. If there are no duplicate values, you can first use array_flip() to exchange the keys and values, then krsort(), and finally exchange them back with array_flip() to compare the sizes. If you want to intercept the array, you can

10. Analysis of the role of PHP function array_flip() in deleting duplicate array elements_PHP tutorial

Introduction: Analyze the role of PHP function array_flip() in deleting duplicate array elements. We all know that there are many ways to delete array elements in PHP. The commonly used function is array_unique() in PHP. So the PHP function array_flip() we introduce to you today is in

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