In PHP, = and == are different operators. = is used to assign a value and returns the assigned value, while == is used to compare whether two values are equal and return a Boolean value. == is type-sensitive, = is not.
##The difference between = and == in PHP
In PHP,= and == are two different operators with different uses and meanings.
= Operator
== Operator
Difference
The main difference is:Type sensitivity
Example:
<code class="php">$number = 10; $string = '10'; if ($number == $string) { echo 'Equal'; // 输出 "Equal" } if ($number = $string) { echo 'Equal'; // 错误,意外的分配 }</code>
== is converted to the same type (string), while in the first example = in both examples will cause allocation errors.
When to use
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