$string = “This is a test string”; $substring = “test”; if (strpos($string, $substring) !== false) { echo “The string contains the substring.”; } else { echo “The string does not contain the substring.”; } “` 2. strstr函数:strstr函数用于在字符串中查找子字符串,并返回从...
echo “The string contains the substring.”; } else { echo “The string does not contain the substring.”; } “` 2. 操作流程如下: – 首先,定义一个包含指定字段的字符串,如$string = “This is a string contains substring”; – 然后,定义要判断的字段,如$substring = “contains”; – 使用...
$string = 'Hello, world!'; $substring = 'world'; if (str_contains($string, $substring)) { echo "The string contains the substring."; } else { echo "The string does not contain the substring."; } 复制代码 在上面的示例中,我们首先定义了一个包含字符串的变量$string和一个子字符串的变量...
Discover multiple methods for checking if a substring exists within a PHP string. Explore efficient techniques for substring detection now!
str_contains — Determine if a string contains a given substring str_ends_with — Checks if a string ends with a given substring str_getcsv — 解析 CSV 字符串为一个数组 str_ireplace — str_replace 的忽略大小写版本 str_pad — 使用另一个字符串填充字符串为指定长度 ...
substr()Returns a part of a string substr_compare()Compares two strings from a specified start position (binary safe and optionally case-sensitive) substr_count()Counts the number of times a substring occurs in a string substr_replace()Replaces a part of a string with another string ...
The str_contains function checks whether a string is contained in another string. The str_starts_with and str_ends_with functions are used for determining if a string starts or ends with a specific substring. The 'str*' calls can be replaced with PHP 8 'str_*' calls inspection highlights...
getBit - Returns the bit value at offset in the string value stored at key getRange - Get a substring of the string stored at a key getSet - Set the string value of a key and return its old value incr, incrBy - Increment the value of a key incrByFloat - Increment the float value...
Strings\collapseWhitespace(" String \t libraries are \n\n\t fun\n! "); // => 'String libraries are fun !'contains($input, $substring)Check if string contains substringStrings\contains('PHP is one of the best languages!', 'one'); // => true...
; An empty string can be denoted by simply not writing anything after the equal ; sign, or by using the None keyword: ; foo = ; sets foo to an empty string ; foo = None ; sets foo to an empty string ; foo = "None" ; sets foo to the string 'None' ...