php中函数 vsprintf() 和 var_export()
把格式化字符串写入变量中:
<?php $number = 9; $str = "Beijing"; $txt = vsprintf("There are %u million bicycles in %s.",array($number,$str)); echo $txt; ?>
var_export — 输出或返回一个变量的字符串表示
public function dump($key, $data) { $contents = '<?php' . "\n" . '$config = ' . var_export($data, true) . ';'; $filename = $this->_getFilePath($key); return file_put_contents($filename, $contents); }
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if else if就是这样的,满足if则不会走else if
如果你想要满足,写成
if(){
}
if(){
}
即可,不要那个else