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Editorial Team
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Asked: 2026-06-04T10:49:37+00:00

I have a sample code: $text = abc ABC def ghi Abc aBc xyz;

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I have a sample code:

$text = "abc ABC def ghi Abc aBc xyz";
$search = "abc"
$string = str_replace(" ".trim($search)." ", 'DEF', $text);
echo $string;

And result is: “abc ABC def ghi DEF aBc xyz” // only Abc change

But result exactly is: “abc DEF def ghi DEF DEF xyz“

How to fix it ?

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1 Answer

  1. Editorial Team

    You can using:

    $regex = '/(\s)'.trim($search).'(\s)/i';
preg_match_all($regex, $text, $tmp3)
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