10 recommended articles about key()

These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am the link. array_intersect($arr1, $arr2); //Get the intersection of the same key value in the array array_intersect_key($arr1, $arr2); //Get the intersection of arrays with the same key name array_intersect_assoc(same as above); //Get the intersection of the key values ​​of the array with the same key name array_intersect_uassoc(same as above, 'custom callback function'); //Use a custom callback function to obtain the intersection of the key values ​​of the array with the same key name array_intersect_ukey (same as above, custom callback function); //Use a custom callback function to obtain the intersection of data with the same key name 1 $arr1 = array('r' => 'red','u' => 'blue&

1. key()'s 10 recommended content

##Introduction: These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am a link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name key value The intersection of array_intersect_uas...

2. Recommended articles about ukey() function

Introduction: These 5 functions for obtaining intersection have 5 corresponding functions for obtaining difference sets. I am the link. array_intersect($arr1, $arr2);//Get the same key of the array. Intersection of values ​​array_intersect_key($arr1, $arr2);//Get the intersection of arrays with the same key name array_intersect_assoc(same as above);//Get the intersection of arrays with the same key name array_intersect_uas...

3. 10 recommended articles about array_intersect_ukey()

##Introduction: This There are 5 corresponding functions for getting the intersection. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);// Get the intersection of arrays with the same key name array_intersect_assoc (same as above); // Get the intersection of arrays with the same key name array_intersect_uassoc (same as above, 'Custom...

4.

Recommended articles about array_intersect_key()

##Introduction: There are 5 corresponding functions for obtaining intersection The function to get the difference set. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc(same as above) );//Get the intersection array_intersect_uassoc of the key value of the array with the same key name (same as above, 'Custom...

5.

array_diff_ukey function usage summary

Introduction: Definition and usage The array_diff_ukey() function is used to compare the key names of two (or more) arrays  , and return the difference set. Note: This function uses a user-defined function to compare key names! This function compares the keys of two (or more) arrays and returns a difference array that includes all keys in the compared array (array1) but not in any of the other argument arrays (array2  or   key name in array3 etc.). Syntax array_diff_ukey(a...

##6. 10 recommended articles about array_diff_key()

Introduction: Definition and usage The array_diff_key() function is used to compare the key names of two (or more) arrays and return the difference. This function compares the keys of two (or more) arrays and returns a difference array that includes all keys in the compared array (array1) but not in any of the other argument arrays (array2  or   key name in array3 etc.). Syntax array_diff_key(array1,array2,array3...

7. 10 recommended articles about php key()

Introduction: Redis is a memory-based key (key) value (value) type data structure storage container, which can fully work in In memory, it can also be stored persistently. When Redis works in persistence mode, it can be used as a non-relational database. In actual development, it is inevitable to operate mysql, mongodb, redis and other data storage servers. A brief introduction to how to operate redis. An example of the installation of the redis server will not be introduced here. If you are interested, you can install it yourself...

#8. Detailed introduction to the array_diff_ukey function

##Introduction: Definition and usage array_diff_ukey() function is used to compare two (or more) array key names and returns the difference. Note: This function uses a user-defined function to compare the key names! This function compares the key names of two (or more) arrays and returns a Difference array, which includes all key names that are in the compared array (array1) but not in any other parameter array (array2  or array3 , etc.) Syntax array_diff_ukey(a...

9.

Detailed introduction about array_diff_key

Introduction: Definition and usage The array_diff_key() function is used to compare the key names of two (or more) arrays and return the difference. This function compares the key names of two (or more) arrays and returns them. A difference array that includes all keys that are in the compared array (array1) but not in any other parameter array (array2  or array3  etc.) Syntax array_diff_key(array1,array2,array3). ......

10.

Definition and usage of PHP array_diff_key() function

Introduction: Definition and usage The array_diff_key() function is used to compare the key names of two (or more) arrays and return the difference. This function compares the keys of two (or more) arrays and returns a difference array that includes all keys in the compared array (array1) but not in any of the other argument arrays (array2 or array3, etc. ) in the key name. Syntax array_diff_key(array1,array2,array3...);

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