php使用substr和substr_replace函数删除字符串最后一个字符

1、使用substr或mb_substr删除字符串最后一个字符

$string = "This is test string..";

echo $string . "n";

// substr function http://www.manongjc.com

echo "substr: " . substr($string,-1);

echo "n";

// mb_substr multibyte version

echo "mb_substr: " . mb_substr($string,-1);

echo "n";

输出结果：

This is test string..

This is test string.

This is test string.

2、使用substr_replace删除字符串最后一个字符

$string = "This is test string..";

echo $string . "n";

// substr_replace function

echo "substr_replace: " . substr_replace($string,"",-1);

echo "n";

输出结果：

This is test string..

This is test string.

（编辑：安卓应用网）

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