Comparison of PHP strings

int strcmp( string $str1, string $str2)

Note that the comparison is case-sensitive.

Parameters

str1 the first string.

str2 a second string.

return value

Returns a negative number if the str1 is less than str2, returns a positive number if the str1 is greater than str2, and returns 0 if they are equal. (returns 0 when equal)

Example:

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$var1="Hello"; $var2="Hello"; if(strcmp($var1,$var2)==0) {echo'相等'; } else { echo'不相等'; } ?>

strcasecmp-binary Security comparison string (case insensitive)

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1	int strcasecmp(string$str1,string$str2)

• Str1

• The first string.

• str2

• A second string.

return value: If STR1 is less than str2 returns < 0, if STR1 is greater than str2 returns > 0, if both are equal, 0 is returned.

Example: $var 1= "Hello";
$var 2= "Hello";
if (strcasecmp ($var 1, $var 2) ==0) {
Echo ' $var 1isequalto$var2inacase-insensitivestringcomparison ';
}
?>

The above describes the PHP string comparison, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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