How to check which row of an array a value is in in php

Method to check the number of rows: 1. Use the "array_values($arr)" statement to convert the specified array into an index array; 2. Use the "array_search("value", index array)" statement in the index array Search for the specified value and return the corresponding index; 3. Use the "index value 1" statement to calculate the number of rows of the specified value in the array.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php check value is in Which row of the array

Implementation method:

• Use array_values() to get the values ​​of all elements in the array, and return a value containing all key values array, that is, convert the array into an index array.

• Use array_search() to search for a given value in the index array and return the corresponding index value

• The array index value starts from 0 , so the number of rows with the specified value needs to be added to the obtained index value by adding 1

  
  

##Implementation example:

<?php
header(&#39;content-type:text/html;charset=utf-8&#39;);
$arr=array("id"=>"1","name"=>"李华","age"=>"25","color"=>"red");
var_dump($arr);
$value=array_values($arr);
$index=array_search("李华",$value)+1;
echo "指定值 &#39;李华&#39; 在数组第 ".$index." 行";
?>

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