php关联数组、预匹配和循环
我有一个关联数组,从中用正则表达式提取两个数字php关联数组、预匹配和循环,php,arrays,associative,Php,Arrays,Associative,我有一个关联数组,从中用正则表达式提取两个数字 <?php $link = array ( "model_one" => "Only 50.95 usd for 2 years or 700.30 usd.", "model_two" => "Only 70.95 usd for 2 years or 900.20 usd."); foreach ($link as $key=>$links) { $pattern = '/.\d+(
<?php
$link = array (
"model_one" => "Only 50.95 usd for 2 years or 700.30 usd.",
"model_two" => "Only 70.95 usd for 2 years or 900.20 usd.");
foreach ($link as $key=>$links) {
$pattern = '/.\d+(?:\.\d{2})?((?<=[0-9])(?= usd))/';
preg_match_all($pattern,$links,$result);
$final = array();
foreach($result[0] as $k=>$v) {
$final[]=$v;
echo $final[0]; // print 50.95 50.95 70.95 70.95
}
}
?>
您需要遍历包含匹配值的数组:
foreach ($link as $key => $links) {
$pattern = '/\d+(?:\.\d{2})?((?<=[0-9])(?= usd))/';
preg_match_all($pattern,$links,$result);
foreach ($result[0] as $amt) {
echo "$key $amt\n";
}
}
非常感谢麦莉的回复。通过这种方式,我将模型与两个数字关联:模型1 50.95和700.30。如何选择一个单独的数字放入数据库:插入到。。。(col1,col2)值(50.95700.30)谢谢again@user3332537:那么您不需要循环。只需使用
内爆()
。演示:@Amal Murali好的,很好。如果我使用查询更新单个值,还有一个问题:更新model\uOne SET first\u price=50.95和SET second\u price=700.30我该怎么做it@user3332537:值存储在$result
数组中。你只需要访问它。见演示:(如果您还有任何问题,请以a的形式提问)我感谢您的回答
foreach ($link as $key => $links) {
$pattern = '/\d+(?:\.\d{2})?((?<=[0-9])(?= usd))/';
preg_match_all($pattern,$links,$result);
foreach ($result[0] as $amt) {
echo "$key $amt\n";
}
}
model_one 50.95
model_one 700.30
model_two 70.95
model_two 900.20