How to Efficiently Create a Comma-Delimited String from an Array of Objects in PHP?

Composing a Comma-Delimited String from an Array of Objects

When working with arrays of database records, there may arise a need to concatenate the values of a specific column into a comma-separated string. However, a common challenge is eliminating the trailing comma from the last element.

One approach involves using a straightforward foreach loop to append the names from the database records:

foreach($results as $result){
  echo $result->name.',';
}

While this effectively concatenates the names, it introduces an unwanted trailing comma. To address this, an alternative method is recommended:

$resultstr = array();
foreach ($results as $result) {
  $resultstr[] = $result->name;
}
echo implode(",",$resultstr);

In this approach, an array ($resultstr) is initialized and populated with the names. Subsequently, the implode() function is employed to join these values using a comma (,) as the delimiter, producing the desired comma-separated string.

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