PHP strncmp() Function

The strncmp() is predefine string function of PHP. It is used to compare two strings. This function strncmp() is binary-safe, case-sensitive and similar to strcmp() function but strcmp() have no the length parameter.

The strncmp () function is often used in programming and web development for string operation.

Syntax:

The strncmp () function:

• Returns 0 : if the two string is equal.
• Returns <0 : if string 1 is less than string2.
• Return >0 : if string1 is greater than string 2.

Example 1

Output:

By using 'strcmp()' function: 0

Example 2

Output:

By using 'strcmp()' function:-9

Example 3

Output:

By using 'strcmp()' function:9

See Also :

• str_word_count() : It is used to count the number of words in a string.
• strcasecmp() : It is used to compare two strings.
• strchr() : It is used to find the first occurrence of a string inside another string.

Reference:

http://php.net/manual/en/function.strncmp.php