Is there a syntax error in the echo statement in frame.php that could be causing the issue?

The issue may be caused by a missing closing parenthesis in the echo statement in frame.php. To solve this issue, check the echo statement in frame.php for any missing or mismatched parentheses and correct them if necessary. 

// Incorrect echo statement with missing closing parenthesis
echo "<iframe src='frame_content.php' width='100%' height='500>";

// Corrected echo statement with closing parenthesis
echo "<iframe src='frame_content.php' width='100%' height='500'></iframe>";

Keywords

syntax error echo statement frame.php PHP issue

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