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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