Recent questions tagged pdo

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pdo - Persistent DB Connections - Yea or Nay?

I'm using PHP's PDO layer for data access in a project, and I've been reading up on it and seeing that it has ... If it matters to you, I'm using MySQL 5.x. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pdo - How to differentiate between php constant and string

I am storing db credentials in a file as constant and including in another file. I am using PDO to ... com/questions/65879687/how-to-differentiate-between-php-constant-and-string...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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pdo - After PHP 7.4.14 Update I have some SQL errors

After update of PHP at 6.1.2021 from 7.4.13 to 7.4.14 I have some errors which was not before. MySql is 5. ... com/questions/65641699/after-php-7-4-14-update-i-have-some-sql-errors...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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pdo - sqlite - finding if multiple records exist in table with single query

I am trying to optimize an sqlite query (PHP-PDO) by having one query run instead of many queries on the same data. I ... something like: aaaa 1 gg 0 ffff 1 Thank you in advance....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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pdo 获取总列数

pdo 怎么获取总列数 $cols=mysql_num_fields($result);//总列数 $total=mysql_num_rows($result);//总条数用pdo 怎么写...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

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pdo insert有返回index，数据库却没有新增数据

调用以下函数插入后，lastinsertid返回数字每次都+1，但表就是空的在数据库管理页面上直接添加一行，也发现id是增加了的 function insert_del($operator='insert', ... prepare($sql); $sth->execute(['openid'=>$openid]); } $pdo = null; }...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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