$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
$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...
Discover multiple methods for checking if a substring exists within a PHP string. Explore efficient techniques for substring detection now!
If delimiter is an empty string (""), explode() will return FALSE. If delimiter contains a value that is not contained in string and a negative limit is used, then an empty array will be returned, otherwise an array containing string will be returned. 如果delimiter 为空字符串(""),explod...
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...
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. ...
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...
string_contains string_finish string_random is_url class_basename is_windows_os Functions description string_without(string $haystack, string $needle) Remove a substring from a string. It returns the original string if the substring is not found. $string = string_without('This is my name', '...
if(is_callable("exec")) { $result=array; exec('arp -a',$sa); foreach($saas$s) { if(strpos($s,'---')!==false) { $parts=explode(' ',$s); $ip=$parts[1]; array_push($result,$ip); } //var_dump(explode(' ',$s)); ...
PREG_OFFSET_CAPTURE- When this option is enabled, each match, instead of being a string, will be an array where the first element is a substring containing the match and the second element is the position of the first character of the substring in the input. ...