Related Topics
PHP strcspn() Function
PHP strcspn() Function The strcspn() function in PHP returns the number of characters (including whitespaces) found in a string before any part of the specified characters is found. It is a binary-safe function. Syntax strcspn ( string $subject , string $mask [, int $start [, int $length ]] ) Parameter subject(required)- This...
1 minute read.
PHP uksort() Function
PHP uksort() Function The uksort() function in PHP sorts an array by keys using a user-defined comparison function. Syntax uksort ( array &$array , callable $key_compare_func ) Parameter array(required)- This parameter represents the input array. key_compare_func(required)- This parameter represents a string that describe a callable comparison function....
1 minute read.
PHP array_count_values() Function
PHP array_count_values() Function The array_count_values() function in PHP counts all the values present in the specified array and returns an array using the values of the array as keys and their frequency in the array as values. Syntax array_count_values ( array $array ) Parameter array(required)- This parameter represents the...
1 minute read.
PHP array_intersect_uassoc() function
The array_intersect_uassoc () function in PHP is used to compute the intersection of arrays with the help of an additional index check, comparing indexes by a callable function. It returns an array containing...
1 minute read.
PHP unset() Function
PHP unset() Function The unset() function in PHP is used to unset a given variable. This function destroys the specified variables. If this function is called inside any user-defined function, then it unsets the value associated with...
1 minute read.
PHP strtoupper() Function
The strtoupper() function in PHP is used to convert a string to uppercase. This function is binary-safe. The related functions are as follows: strtolower()lcfirst()ucfirst()ucwords() Syntax strtoupper ( string $string ) Parameter string(required)- This parameter represents the input string. Return This function returns a string with all alphabetic...
1 minute read.
PHP substr_count() Function
PHP substr_count() Function The substr_count() function in PHP counts the number of times a substring occurs in the specified string. Syntax substr_count ( string $haystack , string $needle [, int $offset [, int $length ]] ) Parameter haystack(required)- This parameter signifies the string to search in. needle (required)- This parameter represents the substring to search...
1 minute read.
PHP array_key_exists() function
The array_key_exists () function in PHP is used to check whether the specified key exists in the array or not. It returns a Boolean value TRUE if the given key exists else it returns FALSE. Syntax array_key_exists(mixed key,array$array) Parameter key(required)- This...
1 minute read.
PHP array_key_first() function
The array_key_first () function in PHP gets the first key of an array if the specified array is not empty. Syntax array_key_first(array;$array) Parameter array(required)- This parameter signifies the input array. Return This function returns the first key of the specified...
1 minute read.
PHP print() Function
PHP print() Function The print() function in PHP is used to output one or more string. Syntax print ( string $arg ) Parameter arg(required)- This parameter represents the input data. It can take one or more arguments. Return This function returns an integer value 1. Example...
1 minute read.
PHP list() Function
PHP list() Function The list() function in PHP sorts an array by key while maintaining the keys. Syntax list ( mixed $var1 [, mixed $... ] ) Parameter var1(required)- This parameter accepts variables separated by spaces. …(optional)- This parameter accepts a list of variables separated...
1 minute read.
PHP Tutorial
PHP Tutorial PHP Introduction PHP is a server-side scripting language which is used for web development. It stands for Hypertext Preprocessor. It is faster than another programming language. It supports multiple databases like MySQL, SQL, PostgreSQL and...
3 minutes read.
PHP strtolower() Function
The strtolower() function in PHP is used to convert a string to lowercase. This function is binary-safe. The related functions are as follows: strtoupper()lcfirst()ucfirst()ucwords() Syntax strtolower ( string $string ) Parameter string(required)- This parameter represents the input string. Return This function returns a string with all alphabetic...
1 minute read.
PHP range() Function
PHP range() Function The range () function in PHP is used to create an array containing a range of elements. Syntax range ( mixed $start , mixed $end [, number $step = 1 ] ) Parameter start(required)- This parameter represents the first value of the sequence. end(required)- This parameter represents the...
1 minute read.
PHP array_map() Function
PHP array_map() Function The array_map() function in PHP is used to return an array containing the results of applying the user-defined callback function over the elements of one or more arrays. Syntax array_map ( callable $callback , array $array1 [, array $... ] ) Parameter callable(required)- This parameter...
1 minute read.
PHP sizeof() Function
PHP sizeof() Function The sizeof() function in counts all elements and return the size of the array. This function is an alias of count(). Syntax sizeof( mixed $array_or_countable [, int $mode = COUNT_NORMAL ] ) Parameter array_or_countable(required)– This parameter represents the input array or countable object. mode(optional)-...
1 minute read.
PHP array_key_last() function
The array_key_last () function in PHP gets the last key of an array if the specified array is not empty. Syntax array_key_last ( array $array ) Parameter array(required)- This parameter signifies the input array. Return This function returns the last key of the...
1 minute read.
PHP $ and $$ Variables
PHP $var variable is a normal variable that stores any value. PHP $$var variable is a reference variable that stores the value of$var inside it. Let us take an example. Example 1 <?php $x =...
1 minute read.
PHP chunk_split() Function
PHP chunk_split() Function The chunk_split() function in PHP splits a string into a series of smaller parts. Syntax chunk_split(string,length,end) Parameter string(required)- It specifies the string to split. length(optional)- This parameter represents a number that defines the...
1 minute read.
PHP is_long() Function
The PHP is_long () function in PHP is used to find whether a variable is an integer or not. It returns a Boolean value true if the parameter var is integer else it returns...
1 minute read.

Syntax: