PHP 大数组循环问题

<?php
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);

class weight {
private $_aItems = array();
private $_aTable = array();
private $_aDict = array();
private $_aMatchs = array();
private $_aShow = array();
function __construct() {
}

public function newItems($aItems){
//添加新的检索内容
if (!is_array($aItems))
$aItems = (array)$aItems;
$this->_aItems = $aItems;
$this->_aMatchs = array();
$this->_aShow = array();
}

public function newTable($aTable){
if (!is_array($aTable))
$aTable = (array)$aTable;
$this->_aTable = $aTable;
$this->generateDict();
}

private function generateDict() {
//将字典处理成数组形式
$convert = function($value) {
$value = str_replace(‘|’, ‘,’, $value);
$value = explode(‘,’, $value);
return $value;
};
$this->_aDict = array_map($convert, $this->_aTable);
}

public function getMatchs() {
//返回对照表
return $this->_aMatchs;
}

public function getShow($sRule = ‘debug’) {
/*返回格式化的结果集
* $sFormat: 指定输出格式
*/
if (empty($this->_aItems)||empty($this->_aTable))
//字典源文件不存在
return false;
if (empty($this->_aShow)) {
/*匹配表还没有生成,自动调用相应的命令生成*/
$this->loopTable();
}
$makeDumpStr = function($value, $key) use (&$dumpStr) {
//生成导出文件的文本
if (count($value) >1) {
foreach ($value as $valueOne) {
$valueStr .= $valueOne. ‘,’;
}
$dumpStr .= $this->_aItems[$key] . “\t匹配多个记录号\t”. $valueStr .”\r\n”;
} else {
$dumpStr .= $this->_aItems[$key] . “\t匹配惟一记录号\t”. $value[0] .”\r\n”;
}
};
switch($sRule) {
case ‘debug’:
print_r($this->_aShow);
break;
case ‘json’:
return json_encode($this->_aShow);
break;
case ‘txt’:
$timeExport = date(“Y/M/D h:i:s”);
$dumpStr = ”;
$rFile = fopen(‘dump.txt’, ‘w’);
array_walk($this->_aShow, $makeDumpStr);
$sContent = <<<EOT
========DUMP-FILE-{$timeExport}=========================
{$dumpStr}
EOT;
fwrite($rFile, $sContent);
fclose($rFile);
break;
default:
return $this->_aShow;
break;
}
}

private function loopTable() {
//遍历
foreach ($this->_aItems as $iItemKey=> $sItemLine) {
$this->matchElement($iItemKey);
//print_r($this->_aMatchs);
$this->match2Show($iItemKey);
//print_r($this->_aShow);
//echo “—————–“;
}
//print_r($this->_aMatchs);
//print_r($this->_aShow);
}

private function matchElement($iKey) {
$iMax = 0;
foreach ($this->_aDict as $iDictKey => $aDictLine) {
foreach($aDictLine as $sDictElement) {
$str = $this->_aItems[$iKey];
if(strstr($str, $sDictElement)){
//匹配到一个元素,计数器+1
++$this->_aMatchs[$iKey][‘keyring’][$iDictKey];
}
}
if (!$this->_aMatchs[$iKey][‘keyring’][$iDictKey]) {
//没有匹配到内容
$this->_aMatchs[$iKey][‘keyring’][$iDictKey] = 0;
}
if ($iMax< $this->_aMatchs[$iKey][‘keyring’][$iDictKey])
$iMax = $this->_aMatchs[$iKey][‘keyring’][$iDictKey];
$this->_aMatchs[$iKey][‘index’] = array(
‘key’ => $iDictKey,
‘count’ => $iMax
);

}
}

private function match2Show($iKey) {
//将对照表转化为结果集
$multiMatch = array();
//echo “ikey =”. $iKey.”, “;
foreach ($this->_aMatchs[$iKey][‘keyring’] as $iMatchKey => $iVal) {
if ($iVal< $this->_aMatchs[$iKey][‘index’][‘count’]) {
//这个值比最大值小
//echo “x”;
continue;
} else {
//这个值跟最大值相等,将结果累加到记录中
//echo “y”;
$multiMatch[] = $iMatchKey;
}
}
if (count($multiMatch)> 1)
//多于一条记录匹配值相同
$this->_aShow[$iKey] = $multiMatch;
else
//匹配值最大值唯一
$this->_aShow[$iKey] = array($this->_aMatchs[$iKey][‘index’][‘key’]);
}
}

$aItems = array(
‘chinaisbig’,
‘whichisnot’,
…..
上万条
…..
‘totalyrightforme’,
);
$aTable = array(
‘china,is|small’,
‘china,big|me’,
…..
上千条
…..
‘china,is|big,wich|not,me’,
);
$weight = new weight();
$weight->newItems($aItems);
$weight->newTable($aTable);

$weight->getShow(‘debug’);

?>

原文链接:,转发请注明来源!

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