SQL - IN Operator SQL - ANY, ALL Operators SQL - EXISTS Operator SQL - CASE SQL - NOT Operator SQL - NOT EQUAL SQL - IS NULL SQL - IS NOT NULL SQL - NOT NULL SQL - BETWEEN Operator SQL - UNION Operator SQL - UNION vs UNION ALL ...
<?php $number = 9; $str = "javatpoint"; $file = fopen("test.txt","w"); echo fprintf($file,"There are %u million bicycles in %s.",$number,$str); ?> 输出: 43 例子2 <?php $num1 = 123456789; $num2 = -123456789; $char = 50; // The ASCII Character 50 is 2 // Note...
<?php$string ="Welcome to javaTpoint"; $search1 ="e";echostrstr($string, $search1);echo''; $search2 ="JAVA";//case-sensitivevar_dump(strstr($string, $search2));echo''; var_dump(strstr($string,"WeLcOmE"));?> 输出: 例子2 在下面的示例中,我们将使用第三个参数 $before_search,其...
SELECT SUBSTR( 'JavaTpoint is a website for professionals', 17, 24); This SQL query returns the 24 characters with spaces after the 17th position in the string. SQL Copy输出:website for professionals SQL Copy示例2: 下面的SELECT查询显示给定字符串中从第-17个th位置开始的字符:...
strcoll()是PHP的内置字符串函数,用于比较两个字符串。它是基于本地化的字符串比较。 需要注意的是,strcoll()函数进行的比较是区分大小写的,就像strcmp()函数一样,在比较过程中对大写和小写字母进行了区别对待。但是,它不像strcmp()函数那样是二进制安全的。
上述程序的输出如下。 lo javaT Hello jav javaTp o jav Tpoin 例子3 <?php//By passing zero in $length parameterechosubstr("Hello javaTpoint",7,0)."";?> 输出: 当$length 中传递零或 Null 值时,substr() 函数将返回一个空字符串。 No output...