php strcasecmp and strncasecmp functions

strcasecmp() function

Definition: strcasecmp() function compares two strings.
Syntax: strcasecmp(string1,string2);

Parameter list

Parameter	Description
string1	Required. Specifies the first string to compare.
string2	Required. Specifies the second string to be compared.

Return value:

Return value:	The function returns:
is equal to 0	If two strings are equal
less than 0	if string1 is less than string2
is greater than 0	if string1 is greater than string2
PHP version	4+

strncasecmp() function

Definition: strcasecmp() function compares two strings.
Syntax: strncasecmp(string1,string2,length);

Parameter list

Parameter	Description
string1	Required. Specifies the first string to compare.
string2	Required. Specifies the second string to be compared.
length	Required. Specifies the number of characters per string used for comparison.

Return value:

Return value:	The function returns:
is equal to 0	If two strings are equal
less than 0	if string1 is less than string2
is greater than 0	if string1 is greater than string2
PHP version	4+

Note: The difference between the strcasecmp() function and the strncasecmp() function is that strncasecmp() has an additional specified length of comparison characters in the parameter.

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