blocks|key|1595076|text|Implode将为您将一个数组组合成一个字符串，但是要使一个SQL查询成为kay/value对，您必须编写自己的函数。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1595077|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/implode^0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="http://php.net/implode" rel="nofollow noreferrer">Implode</a> will combine an array into a string for you, but to make an SQL query out a kay/value pair you'll have to write your own function.

blocks|key|1809607|text|你在找http_build_query()。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1809608|entityMap|0|LINK|mutability|MUTABLE|url|http://us.php.net/manual/en/function.http-build-query.php^0|3|I|3|I|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

You're looking for <a href="http://us.php.net/manual/en/function.http-build-query.php" rel="noreferrer"><code>http_build_query()</code></a>.

blocks|key|1809723|text|下面是一个简单的php4友好实现：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1809724|/**
*+Builds+an+http+query+string.
*+@param+array+$query++//+of+key+value+pairs+to+be+used+in+the+query
*+@return+string+++++++//+http+query+string.
**/
function+build_http_query(+$query+){

++++$query_array+=+array();

++++foreach(+$query+as+$key+=>+$key_value+){

++++++++$query_array[]+=+urlencode(+$key+)+.+'='+.+urlencode(+$key_value+);

++++}

++++return+implode(+'&',+$query_array+);

}|code-block|syntax|javascript|1809725|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here's a simple php4-friendly implementation:

<pre><code>/**
* Builds an http query string.
* @param array $query // of key value pairs to be used in the query
* @return string // http query string.
**/
function build_http_query( $query ){

 $query_array = array();

 foreach( $query as $key =&gt; $key_value ){

 $query_array[] = urlencode( $key ) . '=' . urlencode( $key_value );

 }

 return implode( '&amp;', $query_array );

}
</code></pre>

blocks|key|1809830|text|正如对@thatjuan的回答的补充。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1809831|更兼容的PHP4版本：|1809832|if+(!function_exists('http_build_query'))+{
++++if+(!defined('PHP_QUERY_RFC1738'))+{
++++++++define('PHP_QUERY_RFC1738',+1);
++++}
++++if+(!defined('PHP_QUERY_RFC3986'))+{
++++++++define('PHP_QUERY_RFC3986',+2);
++++}
++++function+http_build_query($query_data,+$numeric_prefix+=+'',+$arg_separator+=+'&',+$enc_type+=+PHP_QUERY_RFC1738)
++++{
++++++++$data+=+array();
++++++++foreach+($query_data+as+$key+=>+$value)+{
++++++++++++if+(is_numeric($key))+{
++++++++++++++++$key+=+$numeric_prefix+.+$key;
++++++++++++}
++++++++++++if+(is_scalar($value))+{
++++++++++++++++$k+=+$enc_type+==+PHP_QUERY_RFC3986+?+urlencode($key)+:+rawurlencode($key);
++++++++++++++++$v+=+$enc_type+==+PHP_QUERY_RFC3986+?+urlencode($value)+:+rawurlencode($value);
++++++++++++++++$data[]+=+"$k=$v";
++++++++++++}+else+{
++++++++++++++++foreach+($value+as+$sub_k+=>+$val)+{
++++++++++++++++++++$k+=+"$key[$sub_k]";
++++++++++++++++++++$k+=+$enc_type+==+PHP_QUERY_RFC3986+?+urlencode($k)+:+rawurlencode($k);
++++++++++++++++++++$v+=+$enc_type+==+PHP_QUERY_RFC3986+?+urlencode($val)+:+rawurlencode($val);
++++++++++++++++++++$data[]+=+"$k=$v";
++++++++++++++++}
++++++++++++}
++++++++}
++++++++return+implode($arg_separator,+$data);
++++}
}|code-block|syntax|javascript|1809833|entityMap^0|3|9|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|S|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Just as addition to <code>@thatjuan</code>'s answer. 
More compatible PHP4 version of this: 

<pre><code>if (!function_exists('http_build_query')) {
 if (!defined('PHP_QUERY_RFC1738')) {
 define('PHP_QUERY_RFC1738', 1);
 }
 if (!defined('PHP_QUERY_RFC3986')) {
 define('PHP_QUERY_RFC3986', 2);
 }
 function http_build_query($query_data, $numeric_prefix = '', $arg_separator = '&amp;', $enc_type = PHP_QUERY_RFC1738)
 {
 $data = array();
 foreach ($query_data as $key =&gt; $value) {
 if (is_numeric($key)) {
 $key = $numeric_prefix . $key;
 }
 if (is_scalar($value)) {
 $k = $enc_type == PHP_QUERY_RFC3986 ? urlencode($key) : rawurlencode($key);
 $v = $enc_type == PHP_QUERY_RFC3986 ? urlencode($value) : rawurlencode($value);
 $data[] = "$k=$v";
 } else {
 foreach ($value as $sub_k =&gt; $val) {
 $k = "$key[$sub_k]";
 $k = $enc_type == PHP_QUERY_RFC3986 ? urlencode($k) : rawurlencode($k);
 $v = $enc_type == PHP_QUERY_RFC3986 ? urlencode($val) : rawurlencode($val);
 $data[] = "$k=$v";
 }
 }
 }
 return implode($arg_separator, $data);
 }
}
</code></pre>

I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php.net. IIRC its name isn't that intuitive.

PHP function to build query string from array

我正在查找PHP函数的名称，以便从键值对数组构建查询字符串。请注意，我正在寻找内置的PHP函数来做这件事，而不是一个自制的(这是所有的谷歌搜索似乎返回)。有一个，我只是记不住它的名字或者在php.net上找不到它。IIRC的名字并不那么直观。

问用于从数组构建查询字符串的PHP函数
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