Hello I需要帮助确定扼杀的第一个特征。 如果扼杀含有前方斜线“/”或未在实验室内产生前方斜线。
预 收
Hello I需要帮助确定扼杀的第一个特征。 如果扼杀含有前方斜线“/”或未在实验室内产生前方斜线。
预 收
引言
function getSlashes($str)
{
return $str[0] == / || $str[0] == \ ;
}
Try this code:
<?php
function containSlash($str)
{
return substr($str, 0, 1) == "/";
}
// TEST
echo (containSlash("/hello") ? "TRUE" : "FALSE"); // TRUE
echo (containSlash("hello") ? "TRUE" : "FALSE"); // FALSE
?>
你在此再次提出两个不同的问题。
您可以审查使用方言的第一项特性。
$str[0]
可以通过使用<条码>/条码>来检查舱面是否包含任何<条码>。
strpos($str, / ) === FALSE
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