PHP – Find index of a substring in a string To find the index of a substring in a string in PHP, callstrpos()function and pass given string and substring as arguments. Thestrpos()function returns an integer value of the index if the substring is present in the string, else, the funct...
查看一个字符在字符串中首次出现的位置,i 表示忽略大小写 strripos (PHP 5) strripos — Find the position of the last occurrence of a case-insensitive substring in a string strrpos (PHP 4, PHP 5) strrpos — Find the position of the last occurrence of a substring in a string 查看一个字符在...
$find = “Wo”; $result = strstr($str, $find); if ($result === false) { echo “The character or substring does not exist in the string.”; } else { echo “The character or substring exists in the string: ” . $result; } “` 3. 使用preg_match()函数 preg_match()函数用于进...
string substr ( string $string , int $start [, int $length ] ) str_replace() 字符串替换操作,区分大小写 mix str_replace(mix $search,,mix $replace,mix $subject[,int &$num]) str_ireplace() 字符串替换操作,不区分大小写 mix str_ireplace ( mix $search , mix $replace , mix $subject ...
echo “The string ‘some’ was not found in the string”; } “` 以上是几种在 PHP 中实现 `indexOf` 功能的方法,你可以根据具体需求选择适合的方法来使用。 在PHP中,没有直接提供类似于JavaScript中的`indexOf()`方法用于查找字符串中某个子字符串的索引位置。然而,我们可以通过一些方法来实现类似的功能...
The function returns a part of a string. The first parameter is the specified string. The second parameter is the start of the substring. The third parameter is optional. It is the length of the returned substring. The default is to the return until the end of the string. ...
pcre2_string_utils.o ext/pcre/pcre2lib/pcre2_study.o ext/pcre/pcre2lib/pcre2_substitute.o ext/pcre/pcre2lib/pcre2_substring.o ext/pcre/pcre2lib/pcre2_tables.o ext/pcre/pcre2lib/pcre2_ucd.o ext/pcre/pcre2lib/pcre2_valid_utf.o ext/pcre/pcre2lib/pcre2_xclass.o ext/pcre/pcre2...
getBit - Returns the bit value at offset in the string value stored at key getRange - Get a substring of the string stored at a key getSet - Set the string value of a key and return its old value incr, incrBy - Increment the value of a key incrByFloat - Increment the float value...
In this short tutorial, we look at how to check if a PHP string contains a substring. We also look at the other relevant string manipulation methods. However, in case you are here only for the solution use this link. Why check if a PHP string contains a substring? While writing code,...
// true|false // extract part from string __extract('bar','href="','">') // #foo __extract('bar','">','$array__value) { if(