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PHP 8.1: trim(): Passing null to parameter #1 ($string) of type string is deprecated · Issue #19380 · yiisoft/yii2 · GitHub
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How to Trim Strings in PHP
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PHP trim() function - Trim beginning and end of string (left and right trim) in PHP - YouTube
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How to Trim Strings in PHP
How to Trim Strings in PHP
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PHP trim function for removing spaces: 5 demos
Console] `PHP 8.1` PHP Deprecated: trim(): Passing null to parameter #1 ($ string) of type string is deprecated · Issue #45179 · symfony/symfony · GitHub
Understanding Trim in PHP For Complex Programming
PHP - How to remove spaces from the beginning and end of a string
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