PHP - Check if given string is empty
php - There is an empty value given as standard value on my input field, I don't know where it come from - Stack Overflow
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account is not defined but $mode_balance_ok is true` due to boolean check on empty string · Issue #26023 · Dolibarr/dolibarr · GitHub
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What's the difference between 'isset()' and '!empty()' in PHP? - Stack Overflow
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php - In where shall I use isset() and !empty() - Stack Overflow
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0' as a string with empty() in PHP - Stack Overflow
PHP Check for Empty Values: "!" vs "is_null" vs "isset"
Azure Logic App - simple condition to check for empty string variable fails - Stack Overflow
How to check whether a String is empty in PHP
PHP empty() function use with MySQL NULL - Digital Owl's Prose
