Php中的空间
代码示例
如何检查php字符串长度
<?php
$name = 'abcdef';
echo strlen($str); // 6
$string = ' ab cd ';
echo strlen($str); // 7
?>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';类似页面
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