PHP STRING FUNCTION with example

PHP STRING FUNCTIONS

PHP support a large number of built in string functions.here we consider the basic function for

inspecting

modifying

printing string

SL NO	NAME	description	example
1	Strlen()	To get string length return the length of the string on succes,and 0 if the string is empty	$str = 'abcdef'; echo strlen($str); the output will be 6
2	Strops()	FIND position of first occurense of a string item to be searched . if item is not a string . it is a converted to and integer and appliedd as the ordinal value of a character	$mystring ='abc'; $findme = 'a'; $pos = $strpos($mystring,$findme); the output will 0
3	strrpos()	Find the posistion of the last occurense of a substring in a string Return the numeric position of the last occurense of data in the string , return false if the item was not found	$mystring ='abcda'; $findme = 'a'; $pos = strrpos($mystring,$findme); the output will 4
4	Strcmp()	Binery safe string comparing strcmp ($str1,$str2) This function return < 0 if str1 is less than str2;>0 if str1 is greater than str2, and 0 if they are equal note that this comparison is case sensitive	$string1 = "abc"; $string2 = "abcd"; $value = strcmp ($string1,$string2); if($value < 0) { echo "string1 is lesthan $string2"; } else { echo "string1 is greaterthan $string2"; } the output will be string1 is lesthan abcd