PHP Methods Reference

Applies a callback function to each element of the arrays. Returns a new array with transformed values.

Filters elements of an array using a callback function. Preserves original keys.

Iteratively reduces the array to a single value using a callback function.

Merges one or more arrays. Numeric keys are renumbered, string keys are overwritten.

Returns all the keys or a subset of keys from an array.

Returns all values from an array with numeric keys starting from 0.

Removes duplicate values from an array. First occurrence of each value is kept.

Returns the values from a single column of an input array of arrays or objects.

Creates an array by using one array for keys and another for its values.

Extracts a slice of the array.

Checks if a value exists in an array.

Searches for a value and returns the corresponding key if found.

Sorts an array by values using a user-defined comparison function.

Splits an array into chunks of specified size.

Checks if a string contains a given substring. Case-sensitive.

Checks if a string starts with a given substring.

Checks if a string ends with a given substring.

Splits a string by a separator and returns an array of parts.

Joins array elements into a string with a separator.

Strips whitespace (or other characters) from the beginning and end of a string.

Returns a formatted string using printf-style format specifiers.

Replaces all occurrences of search string with replacement string.

Returns part of a string.

Performs a regular expression match.

Creates a new Laravel Collection instance. Provides fluent, convenient wrapper for working with arrays.

Iterates through the collection and passes each value to the given callback.

Filters the collection using the given callback, keeping only items that pass the truth test.

Reduces the collection to a single value by iteratively combining elements.

Retrieves all of the values for a given key from the collection.

Filters the collection by a given key/value pair.

Groups the collection items by a given key or callback.

Sorts the collection by the given key or callback.

Returns the first element in the collection that passes a given truth test.

Breaks the collection into multiple smaller collections of a given size.

Maps a function over items and flattens the result by one level.

Returns all unique items in the collection.

Passes the collection to the given callback and returns the result.

Finds a model by its primary key.

Adds a where clause to the query.

Eager loads relationships to prevent N+1 query problems.

Creates a new model and persists it to the database.

Finds a record matching attributes or creates a new one, then updates it.

Defines an inverse one-to-many relationship.

Defines a one-to-many relationship.

Defines a local query scope for reusable query constraints.

Creates a fluent string instance for chaining string operations.

Generates a URL-friendly "slug" from the given string.

Gets a value from a nested array using dot notation.

Returns only the specified key-value pairs from the array.

Returns all key-value pairs except the specified keys.

Allows you to access properties or call methods on an object that might be null.

Calls the given callback with the value then returns the value.

Creates a new Carbon instance for the current time.

Parses a string or DateTime into a Carbon instance.

Gets the difference in a human-readable format.

Formats the date using PHP date format characters.

Returns the type of a variable as a string.

Returns the resolved name of the type of a variable (PHP 8+).

Checks if an object is an instance of a class or implements an interface.

Encodes a value as a JSON string.

Decodes a JSON string into a PHP value.

Reads entire file into a string.

Writes data to a file.

Rounds a float to specified precision.

Formats a number with grouped thousands and decimal places.

Returns the highest value from arguments or array.

Returns the lowest value from arguments or array.