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40 lines
747 B
Markdown
40 lines
747 B
Markdown
# PossiblyFalseOperand
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Emitted when using a possibly `false` value as part of an operation (e.g. `+`, `.`, `^` etc).
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```php
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<?php
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function echoCommaPosition(string $str) : void {
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echo 'The comma is located at ' . strpos($str, ',');
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}
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```
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## How to fix
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You can detect the `false` value with some extra logic:
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```php
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<?php
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function echoCommaPosition(string $str) : void {
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$pos = strpos($str, ',');
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if ($pos === false) {
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echo 'There is no comma in the string';
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}
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echo 'The comma is located at ' . $pos;
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}
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```
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Alternatively you can just use a ternary to suppress this issue:
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```php
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<?php
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function echoCommaPosition(string $str) : void {
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echo 'The comma is located at ' . (strpos($str, ',') ?: '');
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}
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```
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