初始化PHP-Xlswrite扩展

library/libxlsxwriter/examples/constant_memory.c

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+/*
+ * Example of using libxlsxwriter for writing large files in constant memory
+ * mode.
+ *
+ * Copyright 2014-2021, John McNamara, jmcnamara@cpan.org
+ *
+ */
+
+#include "xlsxwriter.h"
+
+int main() {
+
+    lxw_row_t row;
+    lxw_col_t col;
+    lxw_row_t max_row = 1000;
+    lxw_col_t max_col = 50;
+
+    /* Set the worksheet options. */
+    lxw_workbook_options options = {.constant_memory = LXW_TRUE,
+                                    .tmpdir = NULL,
+                                    .use_zip64 = LXW_FALSE};
+
+    /* Create a new workbook with options. */
+    lxw_workbook  *workbook  = workbook_new_opt("constant_memory.xlsx", &options);
+    lxw_worksheet *worksheet = workbook_add_worksheet(workbook, NULL);
+
+    for (row = 0; row < max_row; row++) {
+        for (col = 0; col < max_col; col++) {
+            worksheet_write_number(worksheet, row, col, 123.45, NULL);
+        }
+    }
+
+    return workbook_close(workbook);
+}