What are the php array operation methods?
php array operation methods include: array_chunk(), array_pop(), array_push(), array_rand(), array_shift(), array_slice(), array_udiff(), arsort(), etc.
The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
PHP Array function (method) allows developers to access And operate on arrays, and support simple arrays and multi-dimensional arrays.
php array operation method
| Function (Method) | Description |
|---|---|
| array() | Create an array. |
| array_change_key_case() | Returns an array whose keys are all uppercase or lowercase. |
| array_chunk() | Split an array into new array chunks. |
| array_column() | Returns the value of a single column in the input array. |
| array_combine() | Create a new array by merging two arrays (one for key names and one for key values). |
| array_count_values() | is used to count the number of occurrences of all values in the array. |
| array_diff() | Compares arrays and returns the difference between the two arrays (only comparing key values). |
| array_diff_assoc() | Compare arrays and return the difference between the two arrays (compare key names and key values). |
| array_diff_key() | Compare arrays and return the difference between the two arrays (only comparing key names). |
| array_diff_uassoc() | Compare arrays and return the difference set of two arrays (compare key names and key values, use user-defined key name comparison function). |
| array_diff_ukey() | Compare arrays and return the difference between the two arrays (only compare key names, use user-defined key name comparison function). |
| array_fill() | Fills the array with the given key value. |
| array_fill_keys() | Fills the array with the key value given the specified key name. |
| array_filter() | Use the callback function to filter the elements in the array. |
| array_flip() | Reverse/exchange the key names in the array and the corresponding associated key values. |
| array_intersect() | Compares arrays and returns the intersection of two arrays (only comparing key values). |
| array_intersect_assoc() | Compare arrays and return the intersection of the two arrays (compare key names and key values). |
| array_intersect_key() | Compare arrays and return the intersection of the two arrays (only compare key names). |
| array_intersect_uassoc() | Compare arrays and return the intersection of two arrays (compare key names and key values, use user-defined key name comparison function). |
| array_intersect_ukey() | Compare arrays and return the intersection of the two arrays (only compare key names, use user-defined key name comparison function). |
| array_key_exists() | Check whether the specified key name exists in the array. |
| array_keys() | Returns all key names in the array. |
| array_map() | Apply the user-defined function to each value of the given array and return the new value. |
| array_merge() | Merge one or more arrays into one array. |
| array_merge_recursive() | Recursively merge one or more arrays into one array. |
| array_multisort() | Sort multiple arrays or multidimensional arrays. |
| array_pad() | Inserts the specified number of elements with the specified value into the array. |
| array_pop() | Delete the last element in the array (pop). |
| array_product() | Calculate the product of all values in an array. |
| array_push() | Insert one or more elements into the end of the array (push). |
| array_rand() | Randomly select one or more elements from the array and return the key name. |
| array_reduce() | By using a user-defined function, iteratively reduces the array to a string and returns it. |
| array_replace() | Replace the value of the first array with the value of the subsequent array. |
| array_replace_recursive() | Recursively replace the value of the first array with the value of the subsequent array. |
| array_reverse() | Reverse the order of elements in the original array, create a new array and return it. |
| array_search() | Search for the given value in the array and return the corresponding key name if successful. |
| array_shift() | Deletes the first element in the array and returns the value of the deleted element. |
| array_slice() | Returns the selected portion of the array. |
| array_splice() | Remove the specified element from the array and replace it with other values. |
| array_sum() | Returns the sum of all values in the array. |
| array_udiff() | Compares arrays and returns the difference between the two arrays (only compares key values, using a user-defined key name comparison function). |
| array_udiff_assoc() | Compare arrays and return the difference between the two arrays (compare key names and key values, use built-in functions to compare key names, use user-defined function compares key values). |
| array_udiff_uassoc() | Compare arrays and return the difference set of two arrays (compare key names and key values, use two user-defined key name comparison functions) . |
| array_uintersect() | Compares arrays and returns the intersection of two arrays (only compares key values, using a user-defined key comparison function). |
| array_uintersect_assoc() | Compare arrays and return the intersection of two arrays (compare key names and key values, use built-in functions to compare key names, use user-defined functions Compare key values). |
| array_uintersect_uassoc() | Compare arrays and return the intersection of the two arrays (compare key names and key values, using two user-defined key name comparison functions). |
| array_unique() | Remove duplicate values from the array. |
| array_unshift() | Insert one or more elements at the beginning of the array. |
| array_values() | Returns all the values in the array. |
| array_walk() | Apply a user function to each member of the array. |
| array_walk_recursive() | Applies a user function recursively to each member of an array. |
| arsort() | Sort the associative array in descending order by key value. |
| asort() | Sort the associative array in ascending order by key value. |
| compact() | Creates an array containing variable names and their values. |
| count() | Returns the number of elements in the array. |
| current() | Returns the current element in the array. |
| each() | Returns the current key/value pair in the array. |
| end() | Point the internal pointer of the array to the last element. |
| extract() | Import variables from the array into the current symbol table. |
| in_array() | Checks whether the specified value exists in the array. |
| key() | Get the key name from the associative array. |
| krsort() | Sort the associative array in descending order by key name. |
| ksort() | Sort the associative array in ascending order by key name. |
| list() | Assign the values in the array to some array variables. |
| natcasesort() | Use the "natural sorting" algorithm to sort the array in a case-insensitive manner. |
| natsort() | Sort the array using the "natural sorting" algorithm. |
| next() | Move the internal pointer in the array backward one position. |
| pos() | Alias for current(). |
| prev() | Rewind the internal pointer of the array by one bit. |
| range() | Creates an array containing elements in the specified range. |
| reset() | Point the internal pointer of the array to the first element. |
| rsort() | Sort the numeric array in descending order. |
| shuffle() | Rearrange the elements in the array in random order. |
| sizeof() | An alias for count(). |
| sort() | Sort the numeric array in ascending order. |
| uasort() | Use a user-defined comparison function to sort the key values in the array. |
| uksort() | Use a user-defined comparison function to sort the key names in the array. |
| usort() | Sort the array using a user-defined comparison function. |
Recommended study: "PHP Video Tutorial"
The above is the detailed content of What are the php array operation methods?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
How to read a CSV file in PHP?
Aug 29, 2025 am 08:06 AM
ToreadaCSVfileinPHP,usefopen()toopenthefile,fgetcsv()inalooptoreadeachrowasanarray,andfclose()tocloseit;handleheaderswithaseparatefgetcsv()callandspecifydelimitersasneeded,ensuringproperfilepathsandUTF-8encodingforspecialcharacters.
How to use AJAX with php
Aug 29, 2025 am 08:58 AM
AJAXwithPHPenablesdynamicwebappsbysendingasynchronousrequestswithoutpagereloads.1.CreateHTMLwithJavaScriptusingfetch()tosenddata.2.BuildaPHPscripttoprocessPOSTdataandreturnresponses.3.UseJSONforcomplexdatahandling.4.Alwayssanitizeinputsanddebugviabro
What is the difference between isset and empty in php
Aug 27, 2025 am 08:38 AM
isset()checksifavariableexistsandisnotnull,returningtrueevenforzero,false,oremptystringvalues;2.empty()checksifavariableisnull,false,0,"0","",orundefined,returningtrueforthese"falsy"values;3.isset()returnsfalsefornon-exi
Edit bookmarks in chrome
Aug 27, 2025 am 12:03 AM
Chrome bookmark editing is simple and practical. Users can enter the bookmark manager through the shortcut keys Ctrl Shift O (Windows) or Cmd Shift O (Mac), or enter through the browser menu; 1. When editing a single bookmark, right-click to select "Edit", modify the title or URL and click "Finish" to save; 2. When organizing bookmarks in batches, you can hold Ctrl (or Cmd) to multiple-choice bookmarks in the bookmark manager, right-click to select "Move to" or "Copy to" the target folder; 3. When exporting and importing bookmarks, click the "Solve" button to select "Export Bookmark" to save as HTML file, and then restore it through the "Import Bookmark" function if necessary.
How to configure SMTP for sending mail in php
Aug 27, 2025 am 08:08 AM
Answer: Using the PHPMailer library to configure the SMTP server can enable sending mails through SMTP in PHP applications. PHPMailer needs to be installed, set up SMTP host, port, encryption method and authentication credentials of Gmail, write code to set sender, recipient, topic and content, enable 2FA and use application password to ensure that the server allows SMTP connection, and finally call the send method to send email.
How to get the current date and time in PHP?
Aug 31, 2025 am 01:36 AM
Usedate('Y-m-dH:i:s')withdate_default_timezone_set()togetcurrentdateandtimeinPHP,ensuringaccurateresultsbysettingthedesiredtimezonelike'America/New_York'beforecallingdate().
How to create an object in php
Aug 27, 2025 am 08:45 AM
To create a PHP object, you need to define the class first, and then instantiate it with the new keyword. For example, after defining the Car class and setting properties and constructing methods, create an object through $myCar=newCar("red","Toyota"), and then use -> to access its properties and methods, such as $myCar->color and $myCar->showInfo(). Each object has independent data and can create multiple instances.
How to use the spaceship operator () in PHP?
Aug 29, 2025 am 06:31 AM
PHP's spaceship operator is used to compare two values, returning -1, 0 or 1: when the left operand is smaller than the right operand, return -1, when equal to 0, and when greater than 1. It supports types such as numbers and strings, and is often used in sorting scenarios such as usort, making the multi-level sorting logic more concise and clear, and is available since PHP7.0.
