strtolower — Make a string lowercase strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters substr_count — Count the number of substring occurrences substr_...
12 What's case-sensitivity have to do with strcmp? –kennytm Commented Jul 26, 2010 at 8:50 2 @KennyTM: strcmp is case-sensitive. In some languages, like VB, string comparison may not be, and thus would return a different result. This isn't the case in PHP, though. –cHao ...
substr_compare() 从指定的开始位置(二进制安全和选择性区分大小写)比较两个字符串。 substr_count() 计算子串在字符串中出现的次数。 substr_replace() 把字符串的一部分替换为另一个字符串。 trim() 移除字符串两侧的空白字符和其他字符。 ucfirst() 把字符串中的首字符转换为大写。 ucwords() 把字符串中每...
When you came to this page, you may have been looking for something a little simpler: A function that can check if a small string exists within a larger string starting at a particular index. Using substr_compare() for this can leave your code messy, because you need to check that your...
strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters substr_count — Count the number of substring occurrences ...
Edit: For case insensitive comparisons, you may use this alternative: $shows_not_in_db = array_map('unserialize', array_udiff($complete, $subset, 'strcasecmp')); // sample: The walking dead - The Walking Dead Share Improve this answer Follow edited May 30, 2014 at 3:45 answe...
substr_replace(string $string, string $replacement, int $start, ?int $length): 这个用法是将字符串$string中从$start位置开始的$length个字符替换为$replacement字符串。 substr_compare(string $string1, string $string2, int $start, ?int $length, bool $case_insensitive): 这个用法是比较两个字符串$...
strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters substr_count — Count the number of substring occurrences ...
$case_insensitivity =FALSE;// here, this function works as case-insensitiveechosubstr_compare($main_str, $string2,0,9,TRUE)."";// here, this function case-sensitiveechosubstr_compare($main_str,"GOOD Health",0,11, $case_insensitivity)."";//the function works as case-insensitiveechosubstr...
在PHP 中,substr_compare() 函数用于比较两个字符串的一部分。它返回一个整数值,该值指示两个字符串在指定的长度内完全或部分匹配或不匹配。此函数适用于以下情况: 比较字符串的一部分 对大小写不敏感的比较 语法 substr_compare(string1, string2, offset, length, [case_insensitive]) string1: 必需,要进...