PHP code

<?php
/*
* Makes the value of "result" congruent to "value1" modulo "value2".
* opcode number: 5
*/
echo 3;
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line#op fetchextreturn operands
60 MOD   ~0 6,3
1 ECHO     ~0
72 RETURN     1

User Contributed Notes 4 notes

13
doug at unlikelysource dot com
4 years ago
To determine odd or even it's faster and more efficient to use the bitwise & operator:
\$a = 3;
if (\$a & 1) {
echo 'odd';
} else {
echo 'even';
}
// returns 'odd'
martynas dot stropa at gmail dot com
3 years ago
A function to handle integers of any length, including negatives. Returns remainder but also calculates division in the process (could be useful in some cases).

<?php
function remainder(\$dividend, \$divisor) {
if (
\$dividend == 0 || \$divisor == 0) return 0;

\$dividend .= '';

\$remainder = 0;

\$division = '';

// negative case

while (\$dividend < 0) {

\$dividend += \$divisor;
if (
\$dividend >= 0) return \$dividend;
}

// positive case

while ((\$remainder.\$dividend)*1 > \$divisor) {

// get remainder big enough to divide

while (\$remainder*1 < \$divisor) {

\$remainder .= \$dividend[0];

\$remainder *= 1;

\$dividend = substr(\$dividend, 1);
}

// get highest multiplicator for remainder

\$mult = floor(\$remainder / \$divisor);

\$division .= \$mult.'';

// subtract from remainder

\$remainder -= \$mult*\$divisor;
}

// add remaining zeros if any, to division

if (strlen(\$dividend) > 0 && \$dividend*1 == 0) {

\$division .= \$dividend;
}

return
\$remainder;
}
napora dot adam at gmail dot com
6 years ago

I had to create and "INSERT INTO" on every 50th row:

<?php
\$lineBreak
= 50;
\$tableName = 'user';
?>

in the loop:

<?php
if (\$counter === 0 || \$counter % \$lineBreak === 0) {
echo
"INSERT INTO \$tableName (\$tableFields) VALUES (";
} else {
echo
' (';
}

if (\$counter === 0 || \$counter % \$lineBreak === 0) {

\$insertStmt .= ');';
} else {

\$insertStmt .= '),';
}
?>

(in my case I had to check if \$no % \$o === 0)
-29
shaunny at hotmail dot com
8 years ago
A simple check to see if a number is divisible by another number,
i.e. if a number is even.

<?php
if (\$counter % 2) {
echo
"This number is not even.";
} else {
echo
"This number is even.";
}
?>