$needle = “sample”; if (strstr($haystack, $needle) !== false) { echo “The string contains the word ‘sample'”; } else { echo “The string does not contain the word ‘sample'”; } “` 该示例中,我们使用strstr()函数来判断变量$haystack是否包含变量$needle的内容。如果包含,输出”The ...
$haystack = “This is a sample string”; $needle = “/sample/i”; // 使用正则表达式来匹配字符串 if (preg_match($needle, $haystack)) { echo “The string contains the word ‘sample'”; } else { echo “The string does not contain the word ‘sample'”; } “` 4. stristr()函数:这...
strrpos() Finds the position of the last occurrence of a string inside another string (case-sensitive) strspn() Returns the number of characters found in a string that contains only characters from a specified charlist strstr() Finds the first occurrence of a string inside another string (case...
$search);if(!$tagPos) {thrownew\PhpOffice\PhpWord\Exception\Exception('Can not clone row, template variable not found or variable contains markup.');
ContainsWord boolContainsWord(string word, bool caseSensitive) Introduced in version9.5.0.69 Returnstrueif thewordis contained within this object, but only if it is a whole word. This method is limited to finding whole words in strings that only contains characters in the Latin1 charset (i.e...
public function test(string $x) {} } 如果实现方法与抽象特征方法不兼容，将会抛出致命错误：Fatal error: Declaration of C::test(string $x) must be compatible with T::test(int $x) in /path/to/your/test.php on line 10 不兼容的方法签名 在PHP中，由于方法签名不兼容而导致的继承错误会引发...
Here is a PHP snippet to truncate a string of text at the specified number of words. This is a nice alternative to just shortening a string of text based on character count. With this technique, the truncated string contains only complete words and is readable. ...
wordwrap( string $string, int $width = 75, string $break = "\n", bool $cut_long_words = false): string 使用字符串断点将字符串打断为指定数量的字串。除非 cut_long_words 设置为 true,否则字符串将会在空格(U+0020)后换行。 参数 string 输入字符串。 width 列宽度。 break 使用可选的 brea...
In step 1,In this example (step 1), we define a $tree variable (which is actually not a tree, but a simple array) that contains three elements. The three elements have key values of 1, 2 and 3, and all of them point to a string describing the English word that matches with the...
$input = "This is a test string."; $word = "is"; // 使用正则表达式进行精确过滤 $output = preg_replace("/\b" . $word . "\b/i", "", $input); echo $output; 上述代码中,使用了\b来表示单词的边界,\b可以匹配单词的开始或结束位置。通过在单词两侧添加\b,可以确保只匹配整个单词而不是...