if length is 0 regardless what the two strings are, it will return 0
strncmp("xybc","a3234",0); // 0
strncmp("blah123","hohoho", 0); //0
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(PHP 4, PHP 5)
strncmp — Binary safe string comparison of the first n characters
This function is similar to strcmp(), with the difference that you can specify the (upper limit of the) number of characters from each string to be used in the comparison.
Note that this comparison is case sensitive.
The first string.
The second string.
Number of characters to use in the comparison.
Returns < 0 if
str1 is less than
str2; > 0 if
is greater than
str2, and 0 if they are
CACHED: (2013-05-19 13:31:28)