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Case sensitive string comparison Case sensitive string comparision can be done by using strcmp function in PHP. This function returns < 0 if first string is less than second string, returns > 0 if first string is greater than second string and returns 0 if both the strings are equal.
For a case in sensitive string comparison use strcasecmp function
Here is a sample code using strcomp function to check two strings.
$str1="Hello World";
$str2="hello world";
echo strcmp($str1,$str2);
if(strcmp($str1,$str2)==0){
echo "Both strings are matching";
}else{
echo "Both strings are different ";
}
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