How Can I Generate a PHP Array from a String Without Empty Elements?

Generating Arrays from Strings without Empty Elements

The explode() function in PHP generates an array of strings by splitting an input string based on a specified substring. However, it can leave empty strings when there are consecutive delimiters. This issue arises when attempting to retrieve distinctive elements.

Solution:

To eliminate empty elements from the resulting array, consider using preg_split(). This function offers more flexibility and control over the splitting process.

Code Snippet:

$exploded = preg_split('@/@', '1/2//3/', -1, PREG_SPLIT_NO_EMPTY);

In this example:

• preg_split() splits the string '1/2//3/' at every occurrence of '/'.
• -1 indicates that all matches should be split, preventing empty elements.
• PREG_SPLIT_NO_EMPTY excludes empty elements from the resulting array.

The output will be:

array(
  [0] => "1",
  [1] => "2",
  [2] => "3"
)

This method effectively provides an array with only non-empty elements, unlike explode() which includes empty strings.

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