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PHP strcasecmp() 函数
tryphp_func_string_strcasecmp3
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<!DOCTYPE html> <html> <body> <?php echo strcasecmp("Hello world!","HELLO WORLD!")."<br>"; // The two strings are equal echo strcasecmp("Hello world!","HELLO")."<br>"; // String1 is greater than string2 echo strcasecmp("Hello world!","HELLO WORLD! HELLO!")."<br>"; // String1 is less than string2 ?> </body> </html>