缩短字符串php

代码示例

8
0

php获取字符串的第一个字符

$firstStringCharacter = substr("hello", 0, 1);
1
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在php中只打印字符串的一些字符

substr(string,start,length)
1
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php从字符串结尾的第n个字符

  $rest = substr("abcdef", -3, 1); // returns 'd'
0
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php修剪字符串到长度

<?php
echo substr('abcdef', 1);     // bcdef
echo substr('abcdef', 1, 3);  // bcd
echo substr('abcdef', 0, 4);  // abcd
echo substr('abcdef', 0, 8);  // abcdef
echo substr('abcdef', -1, 1); // f

// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';

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