April 2026
Intermediate
1009 pages
34h 15m
English
Content preview from PHP and MySQL
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7.7 Compare
You already know the simple string comparison from Chapter 5. With exact equality and exact inequality, you can even check the data type.
4 === "4"
therefore results in false.
PHP's string functions now provide a few more comparisons that go beyond this basic check.
7.7.1 Comparison Functions
The strcmp(String1, String2) and strcasecmp(String1, String2) functions are used to perform a binary comparison with two strings. The only difference is that strcasecmp() is not case-sensitive. In contrast to the comparison with the corresponding comparison operators, the functions return the result of which string is larger. If String1 is smaller, the return value is less than 0; if both strings are the same, the return value is 0
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