PHP function dl()Loads a PHP extension at runtime

// Example loading an extension based on OS
if (!extension_loaded('phpsolutions')) {
if (
strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
} else {

// Or, the PHP_SHLIB_SUFFIX constant is available as of PHP 4.3.0
if (!extension_loaded('phpsolutions')) {
$prefix = (PHP_SHLIB_SUFFIX === 'dll') ? 'php_' : '';
dl($prefix . 'phpsolutions.' . PHP_SHLIB_SUFFIX);

We can use linux “nm” or “objdump” command to list symbols in object files…

# nm -C
# objdump -s

2 Responses to How can we use PHP to access shared library functions?

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