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Warning: A non-numeric value encountered

for prog answered on December 24, 2023 Popularity 4/10 Helpfulness 7/10

answer Warning: A non-numeric value encountered

Warning: A non-numeric value encountered

Comment

$a = 10;
$b = 10;
$c = 10;
function sum1() {
    $GLOBALS['b'] = $GLOBALS['a'] + $GLOBALS['b'];
}
sum1(); // Here, sum1 causes $b to become a string
echo $b;    // 20

function sum2() {
    global $a,$b,$c; 
    echo $c = $a + (int)$b; // To fix that problem, we need to convert $b to int
}
sum2();		// 30

// My English is not good, I hope you understand what I mean

Popularity 4/10 Helpfulness 7/10 Language php

Source: Grepper

Tags: php

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Contributed on Dec 24 2023

for prog

0 Answers Avg Quality 2/10

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Warning: A non-numeric value encountered

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