为什么 strpos 第一次工作，而不是第二次？

Question

I´m using strpos two timer. In the first if/else it works well but in the second it doesn´t work. This is my code:

if (strpos($word, "mono") == true) {
    $type = "Monobloc";
} else {
    $type = "Articulated";
}

if ($word, "galva") == true) {
    $coating = "Galvanized Rod";
} elseif (strpos($word, "epoxi") == true) {
    $coating = "EPOXI 100%";
} elseif ($word, "electro") == true) {
    $coating = "Electrozinced";
}

Example: If the variable word has the value "galva-mono" $type should be "Monobloc" and $coating should be "Galvanized Rod". The problem is that it is assigning well the $type but in the coating it doen´t enter in the if clause.

Answer 1

As stated in the official documentation :

Warning

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

You are checking the result with == true instead of !== false .

So, try this code:

if (strpos($word, "mono") !== false) {
    $type = "Monobloc";
} else {
    $type = "Articulated";
}

if (strpos($word, "galva") !== false) {
    $coating = "Galvanized Rod";
} elseif (strpos($word, "epoxi") !== false) {
    $coating = "EPOXI 100%";
} elseif (strpos($word, "electro") !== false) {
    $coating = "Electrozinced";
}