Php array key value swap

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Note that the values of array need to be valid keys, i. If a value has several occurrences, the latest key will be used as its value, and all others will be lost. Submit a Pull Request Report a Bug. Return Values Returns the flipped array. I find this function vey useful when you have a big array and you want to know if a given value is in the array.

Php array key value swap

If a key from the first array exists in the second array, its value will be replaced by the value from the second array. If the key exists in the second array, and not the first, it will be created in the first array. If a key only exists in the first array, it will be left as is. If several arrays are passed for replacement, they will be processed in order, the later arrays overwriting the previous values. Arrays from which elements will be extracted. Values from later arrays overwrite the previous values. Returns an array. Submit a Pull Request Report a Bug. Parameters array The array in which elements are replaced. Return Values Returns an array.

The enviroment I was coding in never called it more than once but I caught it in testing and here is the fully working revision.

By understanding and implementing this function, you can increase the efficiency of your code and reduce the time spent on manual data manipulation. This can be useful in many scenarios, such as when you need to find the key for a specific value, or when you want to reorganize your data for more efficient processing. As you can see, the function takes one parameter, the input array, and returns a new array with the keys and values flipped. Here's an array of fruit names with their corresponding colors as keys:. As you can see, the keys and values have been flipped, and the fruit names are now the keys, with their colors as values.

This article demonstrates a PHP function which can be used for swapping of keys with values in an array. This function returns an array with flipped values. Firefox and Microsoft Internet Explorer are recommended browsers for websites using java applets. All rights reserved. Ask Tech Query Post Blogs. Nerd Digest Users. Most Viewed Most Recent Your account has been flagged due to frequent spamming, you are not permitted to post comments.

Php array key value swap

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If you don't want to lose duplicates, and you're ok, with having the values in the flipped array in an array as well, you may use this: PHP 7. Just a head's up for the paranoid. Thank you for your valuable feedback! Create Improvement. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. Exercises Test your skills with different exercises. View More. With PHP 5. PHP fpassthru Function. If you're looking to hire PHP developers , make sure they have a solid understanding of this essential function. If you're interested in enhancing this article or becoming a contributing author, we'd love to hear from you. Explore offer now. This article is being improved by another user right now.

If a key from the first array exists in the second array, its value will be replaced by the value from the second array. If the key exists in the second array, and not the first, it will be created in the first array.

View More. Article Tags :. If a key from the first array exists in the second array, its value will be replaced by the value from the second array. I know a lot of people want a function to remove a key by value from an array. Suggest changes. Free Tutorials Enjoy our free tutorials like millions of other internet users since A new array is created which looks like the one that would have resulted from the described replacement. My W3Schools Tutorials. Improved By :. Get paid for your published articles and stand a chance to win tablet, smartwatch and exclusive GfG goodies! Easy Normal Medium Hard Expert. By understanding and implementing this function, you can increase the efficiency of your code and reduce the time spent on manual data manipulation.