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PHP substr_compare() 函数
tryphp_func_string_substr_compare4
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<!DOCTYPE html> <html> <body> <?php echo substr_compare("Hello world!","Hello world!",0)."<br>"; // the two strings are equal echo substr_compare("Hello world!","Hello",0)."<br>"; // string1 is greater than string2 echo substr_compare("Hello world!","Hello world! Hello!",0)."<br>"; // string1 is less than string2 ?> </body> </html>