trim php中四个去除字符串中空字符的函数
php中四个去除字符串中空字符的函数 [代码片段(12行)] 输出结果
<?php
$text = "\t \t outofmemory.cn!\t \t ";
$leftTrimmed = ltrim($text);
$rightTrimmed = rtrim($text);
$bothTrimmed = trim($text);
print("leftTrimmed = ($leftTrimmed)\n");
print("rightTrimmed = ($rightTrimmed)\n");
print("bothTrimmed = ($bothTrimmed)\n");
?>
输出结果
leftTrimmed = (outofmemory.cn! ) rightTrimmed = ( outofmemory.cn!) bothTrimmed = (outofmemory.cn!)
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