strcasecmp(): Case insensitive string comparison
echo strcasecmp("Hello world","HELLO WORLD"); // Output is 0Output is equal to
- 0 : if both strings are equal or matching
- < 0 : if string 1 is less than string 2
- > 0 : if string 1 is greater than string 1
Case sensitive string comparison use strcmp() function
Sample code using strcasecmp function to check two strings.
Example 1
$str1="Hello World";
$str2="hello world";
echo strcasecmp($str1,$str2); // Output is 0
if(strcasecmp($str1,$str2)==0){
echo "Both strings are matching";
}else{
echo "Both strings are different ";
}Both strings are matching$str1="Hello";
$str2="hello world";
echo strcasecmp($str1,$str2); // Output is -6
if(strcasecmp($str1,$str2)==0){
echo "Both strings are matching";
}else{
echo "Both strings are different ";
}Both strings are different $str1="Hello World";
$str2="hello";
echo strcasecmp($str1,$str2); // Output is 6
if(strcasecmp($str1,$str2)==0){
echo "Both strings are matching";
}else{
echo "Both strings are different ";
}Both strings are different String Functions strcmp(): Case sensitive string comparison str_replace(): String replace
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