How to read data in SQL return results

Cainiao asked a question: how can I read data in the SQL return results? StdClassObject ([count (*)] = & gt; 4) & nbsp; I use SQL to query the number of records. now I want to read the value 4. how can I write it? Thank you !, PHPcodeforeach ($ arras $ v) {echo $ v;} // or ask the ec Cainiao how to read the data in the SQL return result?
StdClass Object ([count (*)] => 4)
I used SQL to query the number of records. now I want to read the value 4. how can I write it? Thank you!


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PHP code

Foreach ($ arr as $ v) {echo $ v;} // or directly echo $ arr [0];