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时间:2026年02月07日 11:31:34

PHP is_numeric() 函数 | 菜鸟教程

PHP is_numeric() 函数 PHP 可用的函数 is_numeric() 函数用于检测变量是否为数字或数字字符串。 PHP 版本要求:PHP 4, PHP 5, PHP 7 语法 bool is_numeric ( mixed $var ) ...

PHP: rawurlencode - Manual

php echo' a href= ftp://user:',rawurlencode('foo @+%/'), '@ftp.example.com/x.txt '; ? 以上示例会输出: a href= ftp://user:foo%20%40%2B%25%2F@ftp.exam...www.php.net

PHP: pack - Manual

CautionFormat codesq,Q,JandPare not available on 32-bit PHP builds. CautionNote that PHP internally stores values as signed values of a machine-dependent size. Integer literals and...www.php.net

PHP: sprintf - Manual

G Like thegspecifier but usesEandf. h Like thegspecifier but usesF. Available as of PHP 8.0.0. H Like thegspecifier but usesEandF. Available as of PHP 8.0.0. o The argument is trea...www.php.net

PHP: stripslashes - Manual

(PHP 4, PHP 5, PHP 7, PHP 8) stripslashes—反引用一个引用字符串 说明 stripslashes( string$string): string反引用一个引用字符串。 如果不需要将数据插入到一个需要转义的位置(例如数据库)...www.php.netTIME.rfTime = +new Date;

PHP: PDOStatement::fetch - Manual

(PHP 5 = 5.1.0, PHP 7, PHP 8, PECL pdo = 0.1.0) PDOStatement::fetch—Fetches the next row from a result set Description publicPDOStatement::fetch( $mode= PDO::FETCH_DEFAULT, $curso...www.php.net