$string1 = "Hello World"; $string2 = "World"; if(strpos($string1, $string2) !== false){ echo "字符串包含在另一个字符串中"; } else { echo "字符串不包含在另一个字符串中"; } 复制代码 在上面的示例中,我们使用strpos函数来判断$string1是否包含$string2
$string = “Hello, World!”; $substring = “o”; $count = substr_count($string, $substring); if ($count > 0) { echo “字符串包含子字符串”; } else { echo “字符串不包含子字符串”; } “` 5. str_contains()函数(PHP 8.0后新增):该函数用于判断一个字符串是否包含另一个子字符串。
if (preg_match(“/sample/”, $string)) { echo “字符串包含指定的字段”; } else { echo “字符串不包含指定的字段”; } “` 3. 使用str_contains()函数(PHP版本为8以上):该函数用于判断一个字符串是否包含另一个字符串。如果包含,则返回true,否则返回false。例如: “` $string = “This is a ...
';if($a contains'are')echo'true'; PHP 中推荐的做法是使用 strpos 函数,如果有匹配,则返回首次出现的位置,也就是 int 类型的值;如果没有,则返回 false。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 $a='How are you?';if(strpos($a,'are')!==false){echo'true';} 注意判断是否匹配,使...
assertStringContainsString()函数是PHPUnit中的内置函数,用于断言包含子字符串的字符串。如果字符串包含子字符串作为子字符串,则此断言将返回true;否则返回false;如果为true,则通过断言的测试用例,否则测试用例失败。 用法: assertStringContainsString(string $substring, string $string, string $message = '']) ...
var_dump(stristr($string, $substring)); In this case, the function will return a FALSE value. A case-sensitive check to see if a string contains a substring. If the case does matter to you, then you can use the strstr function instead. ...
In this article, we will check if any string contains a particular character or not. We will print to the webpage if it contains the character in the string otherwise not. Here's a PHP script to implement this functionality. We will be using strpos() function, which expects two parameter...
$dll->offsetSet(1,'修改成新六号');var_dump($dll->offsetGet(1));// string(18) "修改成新六号"var_dump($dll->offsetExists(1));// bool(true)$dll->offsetUnset(1);var_dump($dll->offsetExists(1));// bool(false) offset 相关的方法函数是根据偏移值来操作链表内的数据,其实就可以理解成是...
Discover multiple methods for checking if a substring exists within a PHP string. Explore efficient techniques for substring detection now!
persistent (integer, should be 1 or 0): defines if a persistent connection should be used. prefix (string, defaults to "PHPREDIS_SESSION:"): used as a prefix to the Redis key in which the session is stored. The key is composed of the prefix followed by the session ID. auth (string...