This function implements a comparison algorithm that orders alphanumeric strings in the way a human being would, this is described as a "natural ordering". Note that this comparison is case sensitive.

Similar to other string comparison functions, this one returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.

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• preg_match() - Perform a regular expression match
• strcasecmp() - Binary safe case-insensitive string comparison
• substr() - Return part of a string
• stristr() - Case-insensitive strstr
• strcmp() - Binary safe string comparison
• strncmp() - Binary safe string comparison of the first n characters
• strncasecmp() - Binary safe case-insensitive string comparison of the first n characters
• strnatcasecmp() - Case insensitive string comparisons using a "natural order" algorithm
• strstr() - Find the first occurrence of a string
• natsort() - Sort an array using a "natural order" algorithm
• natcasesort() - Sort an array using a case insensitive "natural order" algorithm