PHP is_int() Function

The PHP is_int() 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 false.

Syntax

is_integer( mixed $var )

Parameter

var(required)- This parameter represents the value to check.

Return

This function returns a Boolean value TRUE if the parameter var is an integer, else it returns FALSE.

Example 1

Output

bool(true)
bool(false)

Example 2

Output

bool(false)
bool(false)
bool(false)

Example 3

Output

1232 is an int value.

Related Topics

PHP Super Global Variables

There are various predefine “superglobals” in PHP. These variables can easily accessible in function or class. Following are the superglobals variables: $GLOBALS $_SERVER $_REQUEST $_POST $_GETetc. PHP $GLOBALS The “$GLOBAL” isa keyword that...

2 minutes read.

PHP pos() Function

PHP pos() Function The pos() function in PHP returns the current element in an array which is initialized to the first element of the array. This function is an alias of current(). Syntax pos ( array...

1 minute read.

PHP Example

We can create a simple program by writing the source code inside the php tag and save it with .php extension. Syntax: <?php // your code here ?> Let us take an example of PHP. <!DOCTYPE html> <html> <head> ...

1 minute read.

PHP print_r() Function

PHP print_r() Function The print_r() function in PHP displays the information stored in a variable. Syntax print_r (mixed $expression [, bool $return] ) Parameter expression(required)- This parameter represents the expression to be printed. return(optional)- This parameter is used to store the output of...

2 minutes read.

PHP join() Function

PHP join() Function The join() function of PHP returns a string from the elements of an array. This function is an alias of the implode() function. Syntax join(separator,array) Parameter separator(Optional)- Specifies what to put between the array elements. The default...

1 minute read.

PHP Functions

PHP functions are used to reuse piece of code many times. There are various built-in functions in PHP. A function will be executed by a call to the function. Following are...

3 minutes read.

PHP is_null() Function

The is_null() function in PHP is used to find whether the specified variable is a null or not. It returns a Boolean value true if the parameter var is null else it returns...

1 minute read.

PHP serialize() Function

PHP serialize() Function The serialize() function in PHP is used to convert a storable representation of a value. Syntax serialize ( mixed $value ) Parameter value(required)- This parameter represents the value to be serialized. Return This function returns a string containing a byte-stream representation...

1 minute read.

PHP floatval() Function

PHP floatval() Function The floatval() function in PHP is used to give the float value of a variable. Syntax floatval ( mixed $var ) Parameter var(required)- This parameter represents the name of the variable that is to be converted. Return This function...

1 minute read.

PHP stristr() Function

PHP stristr() Function The stristr() function in PHP finds the first occurrence of a string and returns the matched substring. It is a case-insensitive function. Syntax stristr ( string $haystack , mixed $needle [, bool $before_needle ] ) Parameter haystack(required)- This parameter represents the input string. needle(required)- This parameter...

2 minutes 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 str_ireplace() Function

PHP str_ireplace() Function The PHP str_ireplace() function in PHP replaces some characters with some other characters in a string. Syntax str_ireplace ( mixed $search , mixed $replace , mixed $subject [, int &$count ] ) Parameter search(required)- This parameter specifies the value being searched for. replace(required)- This parameter represents the replacement value...

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 array_values() Function

PHP array_values() Function The array_values () function in PHP returns all the values from the array and indexes the array numerically. Syntax array_values ( array $array ) Parameter array(required)- This array represents the input array. Return This function returns an indexed array of values. Example 1 Output Input Array: Array ...

1 minute read.

PHP sprintf() Function

PHP sprintf() Function The sprintf() function in PHP is used to write a formatted string to a variable and returns a formatted string. PHP 4 and above versions support the sprintf() function. The related functions are...

8 minutes read.

PHP count_chars() Function

PHP count_chars() Function The count_chards() function in PHP is used to return information about characters in a string. Syntax count_chars ( string $string [, int $mode = 0 ] ) Parameter string(required)- This parameter represents the string to be checked. mode(optional)- It specifies the return modes Return This function returns one...

2 minutes read.

PHP array_intersect() function

The array_intersect () function in PHP is used to compute the intersection of arrays. It returns an array containing all the entries from array1 that are present in all the other arrays. Syntax array_intersect ( array $array1 , array $array2 [, array $... ]) Parameter array1(required)- This parameter...

1 minute read.

PHP array_udiff_assoc() Function

PHP array_udiff_assoc() Function The array_udiff_assoc () function in PHP computes the difference between the specified arrays with additional index check and compares the data by a callback function. It returns all the values from array1 that are not...

1 minute read.

PHP While Loop

PHP while loop is used to run the same block of code until a condition is met. It should be used if number of iteration it not known. Syntax: <?php while (condition){ //Code...

1 minute read.

PHP levenshtein() Function

PHP levenshtein() Function The levenshtein() function in PHP calculates the Levenshtein distance between two strings. Syntax levenshtein ( string $str1 , string $str2 , int $cost_ins , int $cost_rep , int $cost_del ) Parameter str1(required)- This parameter signifies one of the strings being evaluated for Levenshtein distance. str2(required)- This parameter signifies one of the strings being evaluated...

1 minute read.