PHP如何去掉最后一个字符？-PHP问题

PHP若何去掉最初一个字符？

正在PHP中能够应用“rtrim()”函数去掉最初一个字符，该函数用于删除了字符串结尾的空缺字符或许其它字符，其语法是“rtrim(str,char) ”，其参数str示意要操作的字符串，参数char示意要去除了的字符。

应用典范榜样

<?php
$text = "\t\tThese are a few words :) ...  ";
$binary = "\x09Example string\x0A";
$hello  = "Hello World";
var_dump($text, $binary, $hello);
print "\n";
$tri妹妹ed = rtrim($text);
var_dump($tri妹妹ed);
$tri妹妹ed = rtrim($text, " \t.");
var_dump($tri妹妹ed);
$tri妹妹ed = rtrim($hello, "Hdle");
var_dump($tri妹妹ed);
// 删除了 $binary 结尾的 ASCII 码管制字符
// (包罗 0 - 31)
$clean = rtrim($binary, "\x00..\x1F");
var_dump($clean);
?>

以上例程会输入：

string(32) "        These are a few words :) ...  "
string(16) "    Example string
"
string(11) "Hello World"
string(30) "        These are a few words :) ..."
string(26) "        These are a few words :)"
string(9) "Hello Wor"
string(15) "    Example string"

保举教程：《PHP教程》

以上就是PHP若何去掉最初一个字符？的具体内容，更多请存眷资源魔其它相干文章！